well that's at least a principled vote even if a dangerous one. All of us who realize the danger the country is in have an obligation to see that Trump never gets any where near the Oval Office again. And that requires, even if we have to hold our noises, that we vote for Biden so long as the polls show him to have the best chance of beating Trump.
I understand how difficult this would be for you, whereas it is not nearly so difficult for me because I believe Biden has, on balance, been a good President during extraordinarily challenging times. He's been too cautious with respect to Ukraine and too incautious with respect to Netanyahu. Biden may realize that he has made these mistakes. Correcting them is more and more difficult the further we go down the wrong path.