Irrational mob violence against non-English-speakers has flared up in the US a number of times since 100 years ago.

Foolish people do this because non-English-speakers make good scapegoats. I wonder, do billionaires speak some special language we could ban?

I have to correct one flippant point: English did not become dominant in what is now the US in the 17th century. I've read that around 1800 German seemed to be the most common language in the US of the time, though I can't be sure that is accurate.

The US expanded westward in the 19th century to lands that surely didn't use English much before that. After the US conquered parts of Mexico in the 1840s, the inhabitants continued speaking Spanish for quite some time.