I'm going to add that Mexican immigrant is a political issue for reasons of democratic politics of population. As anyone who has ever lived in California can attest, there's a large latino population in the US that chose to stay after their land was conquered from Mexico. Despite being American in every sense of the word, they show up on population statistics as Hispanic which is associated with immigration. The legal US hispanic population is 50 million, while the illegal immigrant population regardless of race is 11-12 million.
The logic goes that US is a white nation, which means that (like shareholders in a company) we most maintain 50% or lose control of the country. Right now, we only have 63% of the population, while Hispanics are the largest population size. So people, even large legit news companies, are fond of saying things like "Hispanic population growing, whites to be minority by 2050." This is idiotic because the Hispanic population is still only 16.3%, competing with the 12% black population. African Americans and Hispanics are VASTLY different voting blocs. So even if, somehow, the number of illegal immigrants magically gets multiplied by 10x (up to ~100 million), and that population magically gains the ability to vote, and that population magically gains the same voter turnout as whites, white Americans would STILL be the dominant voting block.
All of this is bullshit because this is a secular democracy, and if we wanted it to be a white nation we shouldn't have brought slaves over and we shouldn't have taken land from Mexico. If blacks, or hispanics, or the rural poor were to somehow to grow to outnumber urban whites, I would still respect the outcome of elections. I'd be unhappy at losing political power but at the end of the day a democracy means that sometimes you lose, and sometimes your voice is the quiet one.