If you're interested in convincing people to vote for Biden (which I think is the best option we'll have this election) then I would urge you to talk about the contributions he's made, and to stop telling people who don't want to vote for him that they're the reason the fascists might win. Even if it were true, telling them that will not convince anyone to vote for Biden.
It's also misguided to blame voters for not voting the way you want. If you want a vote, you have to convince the voter! Oh, is the voter too stupid or evil to understand that the candidate is the best? That's a candidate problem. It's literally how democracy works.