Very similar background here. My grandparents on my mom’s side were from Mexico (legally), my mom and dad met in the Air Force (both were officers), and my mom thinks these people are nutz for protesting kids wearing US flags.
She’s been to Mexico and saw how some of our relatives live and she thanks God everyday her parents came to this country. If these people love Mexico so much, maybe they ought to look at the morning sun, turn right and start walking.
Your mother is right.