They are taught that we took their heritage and land and use them as slaves to build everything. They are not taught that we could have/should have taken the whole country after we whipped them in war. They are not told we paid for the land they claim we took. They are not told the Mexican government was so weak they could not sustain the Spanish colonies here which made it easier for the Southwest to become part of the United States. They are not told we did and can do just fine without them.
They believe our politicians when they say we are too lazy to work. They have no respect for this country or our people- none. They have some lessons to learn and I hope they get to have those lessons real soon.
We have a bad habit of doing that. We won France from the Germans fair and square, then gave it back to the French- TWICE!