And your alternative for this next election cycle is what exactly? Be crystal clear. What is the realistic outcome of not supporting Biden over any Republican? How would Trump or Nikki Hailey as president be better for the left than Biden?
Feelings about the past are important, but strategies for the future matter more. Biden has done shitty things, but the best Republican would be orders of magnitude worse. We can’t expect bad people to get what they deserve because it usually isn’t possible. The only achievable justice is the mitigation of future injustice. Cosmic punishment can only be delivered by a god, and attempts to enforce it will often lead us astray.