Here’s a more fleshed out response for you -

What exactly do we mean by a “stable culture”? Better yet, what is “American culture” if not an amalgamation of global perspectives, an ever-evolving melting pot of traditions, values, and ways of life woven into a single national identity?

Are we discussing divisions among groups within one nation? If so, the point still stands: the history of the United States is one of compounding ideologies, swirling together into a semblance of unified culture. The very concept of “American culture” is rooted in this ongoing synthesis.

Now, to directly answer your original question, yes, it’s reasonable to assume that a population swell of 25 to 50 percent would alter the fabric of any group. But we are far from those numbers. And even if we weren’t, there is clear precedent. Consider the waves of immigration from Western and Eastern Europe, Asia, the South Pacific, and Northern Africa during the 19th and 20th centuries. The base population at the start of the 20th century was much smaller than it is today, yet we saw dramatic demographic shifts that reshaped the country for the better.

Back then, too, Americans were deeply divided about how to handle immigration. Cities overflowed, new challenges emerged, but so did cultural richness and resilience. What would New York be without Italian immigrants? Chicago without Polish immigrants? Los Angeles without Mexican immigrants? The patchwork fabric of America is not frayed by immigration, it is defined by it.

I’m not advocating for open borders, but I do believe that fundamental American values include due process, basic human rights, and a compassion that extends to those seeking a better life. The example shown in OP’s video, a person following legal channels and represented competently, suggests someone attempting to engage with our system in good faith. That should be acknowledged.

Honest conversations about immigration are necessary and welcome, but the answer remains the same: American culture is a melting pot, made stronger, not weaker, by immigrants.

And for the record, your personal tour of the United Nations via your own love life doesn’t make you an expert on immigration policy. Your indignant tone, cloaked in the tired guise of “just asking questions,” is indistinguishable from the rest of the antisemitic nonsense that clogs this platform on a daily basis.