Biden had a chance if he was able to speak convincingly in the debate and bring some fire to his campaign stops, but none of that happened. I think a majority of Americans are simply too stupid to understand the threat Trump poses to democracy, but many in this majority, were you to make it understandable, really wouldn't care anyway.
For far too long both parties have not done enough for the American people, instead concentrating on special interests. Do that for decade after decade and you will eventually end up with someone like Trump.