Culture war killing America’s response to demographic decline

In a landmark decision that reaffirms a core constitutional principle, the U.S. Supreme Court has once again ruled that the 14th Amendment guarantees automatic birthright citizenship to all individuals born on U.S. soil — including the children of undocumented immigrants and temporary visa holders, a group the second Trump administration had pushed to exclude from this long-standing legal protection.

The ruling immediately sparked fierce and intemperate backlash from far-right commentators, illustrating just how central anti-immigration activism has become to the identity of the modern American political right. The Federalist’s Sean Davis went so far as to suggest extreme, unhinged measures including dissolving the Union and forcibly sterilizing foreign visitors to the U.S., while prominent right-wing voice Matt Walsh issued hysterical claims that the ruling had destroyed the America he grew up in — a nation that already had birthright citizenship and high levels of unauthorized immigration during his childhood.

These over-the-top outbursts, while alarming, are characteristic of modern social media-fueled political discourse. They also lay bare the evolution of nativism on the right: what began as a policy issue has solidified into a closed, all-consuming ideological worldview that is resistant to reasoned debate, empirical data, or compromise. Today, the idea that immigration is an “invasion” designed to displace the country’s founding population has become a foundational belief for the American right, comparable in its cultural and political centrality to anti-racism for 2010s progressives and pro-Palestine activism for 2020s left-wing movements.

Crucially, however, this hardline nativist worldview represents a clear minority position in the United States, according to consistent public opinion data. Gallup polling confirms that an overwhelming majority of Americans still believe immigration, on balance, benefits the country. This is not to say the public supports open borders: sentiment against unauthorized immigration and in favor of strengthened border security remains widespread, and voter backlash against the chaotic, unrestricted quasi-legal immigration of the first Biden administration directly contributed to Trump’s 2024 election victory. Even so, most Americans do not view unauthorized immigration as an existential invasion, and broad support for a pathway to citizenship for long-term undocumented residents remains strong — even among many non-MAGA Republicans.

On the specific question of birthright citizenship, multiple polls echo the majority support for retaining the policy. A Quinnipiac University poll conducted ahead of the SCOTUS ruling found that 69% of registered voters believe the court should uphold the 1898 precedent reaffirming 14th Amendment birthright citizenship, with just 27% supporting reversal. Pew Research Center data does show that roughly half of Americans favor denying birthright citizenship specifically to children of undocumented immigrants, though pollsters rarely break out public opinion on children of temporary visa holders, leaving majority views on that specific subgroup unclear.

This split in public opinion actually creates an opening for pragmatic policy change: a targeted effort to revise birthright citizenship for children of undocumented immigrants could eventually build enough public support to pass a constitutional amendment, if hardliners were willing to pursue a majoritarian, compromise-driven strategy. But that path is largely off the table for today’s MAGA movement, which has turned immigration into a maximalist culture war issue. Taking an extreme position on immigration has become a core loyalty test for the movement; willingness to compromise to achieve tangible policy gains is seen as a sign of being an outsider, rather than a committed member of the movement.

On the Democratic side, political strategy is also being driven by reaction to MAGA, rather than coherent, long-term policy planning. On one hand, this has led even prominent left-wing voices to pivot unexpectedly after the SCOTUS ruling: progressive streamer Hasan Piker set aside his usual anti-American rhetoric to celebrate the ruling as a defeat for a fundamentally harmful change that would have upended more than a century of constitutional precedent. On the other hand, this purely reactive approach has made it nearly impossible to pass stable, sensible immigration policy. Because Trump and conservatives push for tighter restrictions, Democrats default to pushing for looser borders in response. This dynamic, the analysis argues, explains why the Biden administration took such a lax approach to border enforcement during its first term — a mistake that ultimately cleared the way for Trump’s return to the White House.

This lack of smart, bipartisan immigration strategy comes at a critical moment for the United States, which is now facing a growing fertility crisis that mirrors demographic trends across the globe. Two decades ago, U.S. fertility rates were high enough to keep the population stable long-term. Today, U.S. fertility has fallen below the rate Japan recorded in the 1980s, putting America on the same path of rapid population aging and shrinking that has defined Japan’s economy for decades. Without increased immigration, this demographic shift will have severe economic and social consequences: over the next 25 years, the ratio of working-age Americans per retiree will drop from 3-to-1 to 2-to-1, forcing higher taxes for working-age people to fund elder care, increasing the personal care burden for adults supporting aging parents, and dragging down economic growth and living standards for younger generations. As economist Paul Krugman has noted, immigrants are disproportionately represented in the elder care workforce, making immigration a direct solution to the coming care crisis. The burden of supporting a growing retired population is also likely to push fertility rates even lower, compounding the problem over time, with rural and small-town America hit hardest by population decline.

Immigration cannot permanently stop population aging in a low-fertility world — immigrants also age over time, and global population shrinkage will eventually reduce the global supply of immigrants. But U.S. economic strength and its long-standing global reputation as a destination for opportunity give the country a window to slow demographic decline and buy time to address the root causes of low fertility.

To maximize the benefits of immigration, the U.S. needs to design policy that aligns with both public opinion and economic reality. Fiscal data shows that college-educated immigrants generate a net positive contribution to public finances, reducing long-term national debt, while lower-educated immigrants create a net fiscal drain in the short term — a gap that narrows when accounting for upward mobility of second-generation descendants, but still remains significant. That means a policy of prioritizing skilled legal immigration, strengthening border security, and reducing unvetted quasi-legal asylum grants matches what most American voters say they want, while delivering the greatest economic benefit to the country.

It is legitimate to acknowledge that immigration is not just an economic issue, but a cultural one: assimilation is a two-way street, and immigrants reshape the culture of the countries they join, just as they adapt to it. For those who prioritize preserving the exact cultural character of the U.S. they grew up in, restricting immigration is a logically consistent position, and all nation-states retain the sovereign right to close their borders to preserve their cultural identity if they choose. But that position has already lost the argument in American public opinion: with 79% of the public saying immigration is good for the country overall, even with the understanding that it will bring long-term cultural change, the cultural preservation argument is a lost cause, regardless of how loudly its proponents shout and threaten.

For Democrats, the takeaway is clear: embracing open borders purely as a reaction to MAGA nativism is a political and policy mistake. Most Americans do not support unrestricted immigration; they favor legal entry of immigrants who can contribute positively to the national economy. If Democrats continue to respond to conservative election wins by loosening border controls and ignoring unauthorized immigration, voters will continue to elect xenophobic populists in response.

In an era of persistently low fertility, the United States desperately needs a thoughtful, pragmatic approach to immigration that puts national interest ahead of culture war posturing. It cannot afford to let a small, loud fringe of ideological activists dictate its long-term national demographic and economic policy.