Everything. The entire premise that they've been "sent" by mysterious forces and that they're "bringing crime." Being poor doesn't make you a criminal but that would be the assumption from a white privileged asshole like Trump. The fact is undocumented immigrants are far less likely to engage in violent crime than say, the white privileged Trump lover who is still moaning about losing that drywall job to Enrique. That's just a fact. So what Trump was doing was just flat out lying to energize an group of people who are pissed off in ignorance.
"Relative to native-born citizens and legal immigrants, undocumented immigrants have the lowest felony arrest rates across all four crime types. For violent, property, and drug offenses, legal immigrants occupy a middle position between undocumented immigrants and US-born citizens. The gaps between native-born citizens and undocumented immigrants are substantial: US-born citizens are over 2 times more likely to be arrested for violent crimes, 2.5 times more likely to be arrested for drug crimes, and over 4 times more likely to be arrested for property crimes. " - https://www.pnas.org/content/117/51/32340
No, the American racist was looking for someone to gaslight them on things that make their racist sensibilities feel validated. Real American workers with high work ethic don't fear competition.
It has already been pointed out to you ad nauseum that the economic benefit provided by undocumented immigrants outweigh the costs. But weird how you have no problems with rich white people avoiding taxes all together, but bitch and moan because the guy mowing your neighbor's lawn didn't pay any income tax on that. You might as well bitch about virtually every waiter and bar tender because I can assure you they don't report their actual wages.
Why is it a joke you dumb rube? Everyone else's wages increase every year because of inflation but the minimum wage stays the same no matter what. How does that make sense? Bill O'Reilly used to tell everyone he only made $2 hour throwing newspapers, but what he didn't indicate is that $2 in 1955 is like $19 today. Over time as more and more Republicans take control, the real value of the minimum wage diminishes over time, leaving more and more people in poverty.
Having said that, the minimum wage has been raised in numerous states during the Trump administration resulting in overall wage growth which he tries to take credit for. None of those states have made emergency corrections to their minimum wage increases because they work.