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"
I have seen many Hispanic people in South America writing Latinx on signs, posters, applications, news articles, etc. Its not extremely common but I have seen it plenty of times personally in many places across Equador, Argentina, Colombia, Costa Rica, and Mexico.
Its not a "Yankee" cultural imperialism.
Hilariously even Bad Empanada has a video of himself in Argentina where he says he'll walk out of his house, walk in a random direction, and then end the video when he comes across Latinx in a small city in which almost no one speaks English.... He made it less then 2 minutes before coming across a poster for a local community gathering that was advertised towards, Latinos, Latinas, and Latinx. Again, this was in the middle of a non-English speaking small Argentinian city.
My issue is not with gender neutral endings in romance languages (though I think they're rather underadopted right now), but that for some reason Yankees decided to go with the unpronounceable "X" ending rather than very old and established Latina/o or Latine or even Latin@. In my experience those are way more common than X endings, though I admit I haven't looked at hard data on that.
They could've just called them "Latins/Latin-Americans" but they chose to first a appropriate the grammar for "Latino" then think try to "fix" it in the classic Yankee fashion of not looking at already established norms.