Where have you been? Mexicans are taught from birth that the U.S. stole all of the southwest. I’ve seen videos of Mexicans demonstrating at the Alamo on the 4th of July, burning the American flag several years ago.
The effort to damn all European history and European presence in this country is just beginning.
Tell those Mexican supremacists that Spain is a part of Europe and they still speak the mother tongue of the conquistadors.