On the other hand, people having roots in Mexico, are currently being oppressed by the descendants of Immigrants from Europe.
The only Non-Immigrant Americans are the Native Americans. Even if you were born in the USA you are still a descendant of Immigrants, therefore you would be in the same situation as a black person born and raised in Germany or Iceland. You would still be a German or a Icelandic, yet a descendant of Immigrants.
The big difference is that Immigrants to the USA, Germany and Iceland DO NOT GENOCIDE the Natives.
Just ask a Native American.
Other ethnicities that have also been oppressed when they first immigrated to the USA are the Italians and Irish.
Coming to the USA is like joining a Fraternity: first get hazed, then accepted and finally you get to haze other new pledges (immigrants).