So why are they all given a pass? It's because these tech companies are comprised mostly of left-leaning staff and are willing to now exercise their power against everyone else. Until Twitter, Facebook, and Amazon deplatform every single person and group involved in the hundreds of events in 2020 that involved criminal acts, these new acts of censorship will remain discriminatory and unacceptable.
And I frankly don't care much for your example. My grandfather was a Pole who had to fight Nazi invaders, and I have no reservations about him having to put a few bullets over them.
Nazis and fascists do not want a free and fair society. They delight in the violence of it and have no interest in a marketplace of ideas.
Don't take my word for it. Listen to community activist Victoria Beach explain how she is upset for them terrorizing the area and hijacking the Black Lives Matter movement.