I don't know how you bring them back.
They have been told that all of their issues are not their fault. It's the Left wing, it's the immigrants, it's the liberals, it's the blacks. That's easy. It's piss easy to tell someone their life is shit because of other people.
It's a lot harder to tell them to wake the fuck up and admit they've fallen for a lie. Their hero Donald Trump doesn't give a fuck about them. The party they've been supporting is the one who's kept them down on purpose. That the reason they've got no money is because the Republicans have increased their taxes while giving tax breaks to the rich, and bailed out big business to the tune of Trillions over covid, whilst refusing to send you a $600 check for 10 months.