Turns out if you define a third of your pale population as "Latinx" instead of white, very few white people remain.
Even the 2020 census had the sense (heh) to finally drop the "Hispanic race" and have it as a separate label, but the "researchers" felt like going out of their way to redefine it as a "race" again. Not sure why race is even treated as a scientific thing to begin with in their census, but such is the Amerikkkan way I guess.
Edit: don't even want to think about the causes of this "age gap"
This was always going to happen because Anglo countries define whiteness by one-drop blood quantum rules. The population of white people will always shrink if you define white in such strict terms and everything else in such loose terms.
Having just a single non-white grandparent is often enough to disqualify a person from whiteness.
It also doesn't help that the boundaries of whiteness have shifted compared to 30 years ago. Muslims usually aren't considered white for instance no matter where they're from. I distinctly remember my Syrian neighbors were considered white when I was a kid, then 9/11 happened and suddenly they weren't.
Yeah, I remember that I once had to give my "race" on a visa application. They had the term Caucasian (that was 2018 Singapore), which I found to mean anyone looking European/Mediterranean. So northern Africa also counted.
Fun fact: middle eastern & north African people were legally enshrined as white in the US due to a 1909 ruling with the following logic:
Old timey racism really was something else, what the fuck
Ah... the time US was so racist, Scots, Russians, Slavs, and Italians aren't seen as white.
So Saddam is White?