Don't count Uncle Joe out.
When the democrats start bombarding the airwaves with political ads next summer/fall with Trump's own profanity-laced, bat-shit crazy conspiracy stuff, I think he will lose most of the independents.
At every political event he attends and his twitter stuff, he creates enough fodder for a dozen democratic commercials.
I can just see a rural family sitting around the TV, and Trump coming on the air screaming his sons-of-bitches and bastards lines. The parents get up and change the channel and tell the young children you shouldn't be listening to this. "We taught you be better than that." ..... and the picture fades away and the Biden 2020 thing appears on the screen.
Just wait.
Rub a Dub