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.
Oh yeah, definitely, it’s all just Republican propaganda that both of the two parties in a two party system are co-responsible for national and international policy disasters. For sure. Biden definitely wasn’t a lame duck president who decided not even to fight for major proposals he promised and instead squandered political capital to defend Bibi and kill babies. Yup.