So your outlook would be more accurately characterized as: first, when there is a republican who has chance to win a seat, vote the candidate who is most likely to defeat them, otherwise vote whoever you like at the lower levels?

Putting the defeat of some party’s candidates ahead of the support of one’s own views seems deeply flawed. If it’s more important that those people never hold power then wouldn’t it make more sense to actually take real physical action against them instead of employing a calculus of strategic voting?

It really does seem like you started with the conclusion that we should vote for Biden and are working backwards from there to reenforce it.

Where else are American supplied bombs being dropped on women, minorities and lgbtq people?

I’m not worried about clean hands, I’m not the person sitting at the head of the most powerful military apparatus the world has ever seen sending munitions to be aimed at tents full of refugees: I’m worried about the people dying by American weapons while my government protects the people wielding them.