Something I thought about. Trump will hopefully be exposed as a fraud and a loser. What happens to his supporters when his house of cards comes crashing down? His support will not remain at over 70m people. Poll everyone again next year if he's in jail or has fallen off hard, and he won't have 70m people.
Trump has never lost something on this scale before. He's been a "winner" his whole life. His supporters like winners and hate losers. He's going to become quickly powerless to do anything other than just screaming into the void.
GOPers probably come back into the fold. They crazy Trump base may not go back over to the GOP, they may branch off. Do Independent, middle-of-the-road voters come back over to Biden? Since Biden is basically a republican, Biden may be a candidate they can get behind.
I don't know what point I'm trying to make. Trump's support maybe overinflated right now. It should come back down and those voters will need somewhere to go. Dems should embrace working class voters and try and siphon off some of the very casual Trump supporters who Trump was able to support way back in 2016 with all of his broken promises about jobs and manufacturing, etc.