It's in part because Biden ran on opposing fascism, got elected, and then did nothing to oppose fascism. He sold himself as a dragonslayer, but once he got in, he didn't want to upset the pro-dragon crowd.
So, yeah, when his protege ran the exact same campaign, it didn't instill a lot of confidence.
If your only options are the fascist or the guy who promised to bring the fascist to justice but actually didn't even try, then your problem isn't getting solved by voting in that election.