You didn't raise your pitchfork high enough and yell loud enough so the extremists in the group are attacking you for being a traitor to their group even tho you're on the same side. Happens in any political group on any side whether dictator antifa whatever. If your outward appearance isn't 100% For, they forcefully Align you until they are comfortable with you. Notice how you are now trying to adjust your words to be acceptable. I've seen it everywhere and still find it annoying so at this point i just block. Anyway, human nature; it isn't always enjoyable.