and they're not because they're afraid of being grouped in together with them by people who don't know any better. You do realize that in the past the US has deported US citizens back to Mexico because of their descent.
It has nothing to do with race for them, you're right. It has everything to do with self preservation.
Some of the people on this board though, I am not so sure of.
So what are you looking for... reparations?