I think you are right about the millions and millions of outsiders, but I think you are wrong about who corrupted our culture.
I assume you are talking about mexicans. When I watch tv or movies or listen to music, I don't see any hispanic or mexicans at all. Affirmative action was aimed at citizen blacks. When you see bogus racism claims, it is usually blacks. The liberal BS socialism like perscriptions drugs, everyone gets an a in school, affirmative action, legalized abortion, drug culture. All that stuff was home grown. The mexicans may be blamed for bilingual stuff, and over use of hospitals and schools. But the culture decay was almost 100% home grown. Limitations on free speech has nothing to do with mexicans. Hippies, drugs, divorce and abortion all got their impetus well before the mexican invasions.