the world is not that different in some ways than five hundred years ago.. there are literate people and illiterate people, on a large scale. The rise and fall of literate languages is not the same story as the number of people that speak a language, or what colors are on the local police car. It is not popular to speak of this in the USA since there is a "unifying myth" of equality. What the USA did do brilliantly is use markets and local jurisdictions to let warring people settle nearby each other, and thrive. Over time the old ways show up however. Evolution is not practiced uniformly.

There are parts of the US that still have German-language newspapers. Detroit had a Dutch newspaper until 2018. Whether it closed because it was Dutch or because newspapers as a product are on the decline is academic; the point is that people in the US do speak German, Dutch, and various British Isle dialects, and furthermore there are third-, fourth- and more-generation Spanish-speaking people throughout the south and west. It's a big country, and a lot happens outside your neighborhood.

US didn't annex the Germans or the Dutch into their country. Stop pretending that russia somehow grew peacefully.

Systematic genocide.