@seb321 My problem with the theory that it was a done deal is that Joe Biden in 2020 ran on a platform far left of who he had ever been in political power. The guy who passed the crime bill, vociferously supported Iraq, loves cops, hugs segregationist Republicans, and hates migrants, ran on ending the wars, reigning in police violence, dismantling the migrant jails, and punishing nazis and won.
I can't prove a counterfactual, but I think Harris could have done the same MORE credibly than Biden