That is not what I am saying. This is less about undoing an action, and more about being cognizant of a behavior.
Blocking someone because they offered deep criticisms of things they found to be wrong, and assuming they’re bad faith actors / haters / trolls, is akin to covering your ears and refusing to hear what they have to say.
I’m not saying that you shouldn’t use the block action when it feels appropriate, or that you should unblock people you blocked before. Just that this action requires awareness, and an ability to separate yourself from a context that could very well not actually have anything to do with you, and everything to do with The Thing Needing Fixing.