Are you voting third party? Is there anyone serious running via any
third party? The Libertarian, Ms. Jorgensen, doesn't seem to be able to
win a race in which she would be the only candidate. Who else is running
third party?
Alas nobody. The major party, both branches, has the process sewed up
so tight right now there is no chance for a 3d party to really
survive. It borders on an anti trust situation but nobody would
address it because they are overwhelmingly beholden to that monoparty
system. Trump is the first one to break out of that mold in 50 years
but he did it by taking over the GOP, against their will, not
contesting them. He used to be a democrat, along with a lot of his
supporters.
If there is nobody else as you seem to be saying then the choice comes
down to Trump versus Biden. Biden like any candidate has his faults, but
he isn't a disgusting person as Trump seem to go out of his way to
demonstrate at every opportunity.