IMO the disconnect lies in the fact that many don’t see Biden as the “lesser evil.” They want to vote for Biden, because they’ve been influenced to think it is the only option.
Voters want a solution to that situation, so they make assumptions to come to a conclusion that fits the narrative they tell themselves.
Some, when faced with a no-win situation, choose to not play the game. Others, convince themselves that the lesser-evil is a desirable outcome. Many, myself included, want to “change the conditions of the test.”.
There is no viable solution. All choices are valid and should be respected.