As a psychology major who once wrote a dissertation on cults, I can explain it only by the fact that Trumpism is a deeply addicting and damaging cult. Trump is the cult leader/guru/messiah who is infallible in the eyes of his followers. I would go as far as to say that if Trump had raped and killed the sister of one of his cblind followers that person would find a way to justify it and would still vote for him. Trump is the Jim Jones of our time, and his followers are the Peoples Temple cult members who would willingly drink the poisoned punch.

I did not support Biden in the primaries, but I can't blame him for not achieving a landslide victory. Because he was facing nearly half of the population who are blind, fact free, alternate reality, conspiracy afflicted cultists, and the crazy archaic Electoral College scam, it would be just about impossible for any Democrat to peel off enough Trump cultists in the fly over states to ensure a landslide victory.