I’m sure she’d be thrilled if it were still part of Mexico, and watching people all around her getting their heads cut off from the drug lords.
That’s a bit hyperbolic.
If her family goes a long way back in the San Antonio area, she should research which side her ancestors took up in that conflict. From what I’ve read it was about 50/50 ... those who wanted to become part of Texas, and those who wanted Mexico to prevail.
I agree with her only to the extent that it was a classic fight over territory and dominion and that the textbooks and history make it sound like it was more than that.