I am going to guess, that a lot of people who will vote for him are doing so just because things just kind of suck right now.
Inflation.
Interest Rates
Home prices
Border issues.
And while you can certainly argue those are not Bidens issues, and Trump will do nothing to fix them, people want change.
Those on the left that are in this bubble that Biden can’t lose may be in for a rude awakening in the fall.
I know this isn’t answering your questions, but people are just looking to make their lives easier.
& there is an argument to me made that life was better before COVID.