Most of the Tejanos I’ve encountered could care less about a centuries-old war and are more than happy that their particular families ended up on this side of the border. Of course most of the Tejanos I know were/are in the military or law enforcement so maybe it has more to do with the class of people than the ethnicity. Over the years I’ve noticed that people (myself included) like to look at the worst example of the ‘other’ and use that to make judgements. When you say “Mexican” I bet you’re not thinking of well-educated, professional Hispanics of Mexican descent whose families have lived here since before Sam Houston moved west...you’re thinking of a bunch of semi-literate peasants that have been fed leftist propaganda by their commie agitators since the early 1900’s and don’t really like anyone or anything including themselves. They don’t know anything about the Mexican/American war (outside of a reason they’re ‘entitled’ to something) and could really care less. If you haven’t figured it out, it’s all about the “have nots” being fed propaganda by the Marxists in order to war on the “haves”. Don’t think for one second that the Mexican elite don’t have the same problems with these people and they’re more than happy to rid themselves of that simmering cesspool of revolution. I’ll be glad when we seal off the whole damn border so the rest of us aren’t forever lumped together with the lowest of our co-ethnics.
I guess that depends on what you mean by "well-educated." Most of my encounters are with academics, and the mushbrained college students in their care. And they're mostly overloaded with grievances against us imperialists.
Mind you, they don't march and swing flags, far as I know. I just ask them questions, and start discussions, and that lances the boils.