Don't fool yourself. This is going to depend on a handful of states that are much closer than you think.
There might be a few pleasant surprises too, Donald appears to have a shortage of morons, even in critical states. I've seen the news and read about what you are talking about, but I believe the silent majority is on Biden's side. Donald is down in all demographics, old, female even non college educated white males, but caution is advised. I think from the evidence I've seen most Americans want to bury the fucker in ballots, only the Trumpers on the fence will stay home. If a miracle occurs and youth shows up at the polls he's finished and new registrations are at an all time high. Turnout is expected to be in the 160 million range, record shattering, only a deeply fearful and pissed off populace does this, high turn out favors the democrats traditionally. Usually 100 million Americans don't vote, something is motivating a few of them this time around.
Don't forget covid is ravaging the red states right now, some places are in crises and the republicans are in head long panic for a reason, the same one causing Donald to freak and sweat.