Not everyone thinks this, but I know an extreme right-winger who thinks this. He is also a conspiracy theorist who thinks non-white people are out to get white people so, yeah, odd.
Not every immigrant is illegal or bad. I know a girl who didn’t speak English for 3 years when her family legally immigrated, so of course she’s been told this.
The US is an immigrant nation built on the genocide of natives. Anti-immigration sentiment is based on an ignorance of history and the modern workforce of the country.
Crackdowns on undocumented workers will destroy the local agricultural industry. The US and its food supply are completely dependent on migrant labor.
And yes, it’s deeply hypocritical to genocide a population, steal their land, then act like people who came from elsewhere a few generations later to work are an existential problem.
“Well, WE did it, so obviously they’ll try it too!”