“We have a concrete plan to help you! For example, higher federal minimum wage!”
"Okay, take my vote!
Four years later
“You’ve been in office for four years. Where is the minimum wage hike?”
“Turns out we can’t actually do it unless we have a supermajority of government. And then it’s still questionable if we will. Vote for us some more in your state and presidency. Hope that others in other states do too. Also stop bitching, we are moral and the other people are fascists, do not fail us, you must defend women and minorities by keeping us in power etc etc.”
“I had more money under Trump, fuck off.”
In some ways migrant successes and not failures are bigger fuel for nativist paranoia. Decline of living standards for locals, malaise, substance abuse, opiod crisis etc. are all policy failures, and nativists are terrified that instead of fixing those issues so they can live well in their own nation, the government is happy to let foreigners with more drive and less baggage move in - after all, deindustrialized Ohio is infinitely better than Haiti currently is.
Of course the racial superiority and bigotry play a huge role (in my view the primary role) and economic precarity is a very poor excuse for the insane racism they’ve subjected these migrants to. They aren’t responsible for the policies.