You do realize the razor-thin margins of victory in those battleground states? President Trump can't afford to lose a single vote. Not one. And this year he's not running against a candidate that people viscerally loath. A lot of people didn't vote for Trump because they liked him. They voted for Trump because they hated, absolutely hated, Hillary Clinton.
Biden doesn't have this problem. Sure, we call him "Gropin' Joe" on Free Republic, but out there in the real world where voters don't spend time on political forums, Joe Biden isn't nearly as divisive as Hillary Clinton was.
A win is still a win.
All I hear in the rest of your reply is yada, yada, yada.
Sorry. Being an optimist I just can't support your pessimism.