Maybe I'm just getter up there in age, but here is the dirty little secret about American politics
Everything you just posted literally does not matter at all because the second Biden got elected the American had already made the decision they were going to give the Republicans power in other to keep him in check.
I have seen this play it out so many times before and no matter what people will always do the same thing. They will elect a president and right after that they will start taking power away from that president and his party until he is nothing but a lame duck at the end
To be more blunt the American people hate 1 party rule and he era where they were willing to give FDR and Dems massive amounts of power for decades are long gone. Nowadays it just took a few years for Obama to lose his super majority and trump only got to pass a tax cut before his party lost control of the house.
bottom line it would not matter if Biden was super popular right now because the American people are still going to want the Republican back in power in order to be a check on the president and his party
It's not that people automatically want to put a check, it's more that the in-party base starts wanting things they can't have and the in-party establishment assumes the gravy train is always going to roll, especially if they tell the base that saved them to shut up [Democrats are far worse in this regard than the GOP] so motivation on their side to turnout and vote in simply not there.
Whereas the out-party gets a boost based on anger.
