This is an update from this post
I ended up writing an extremely long winded piece condemning radical politics and violence, sent it to the group, and went to sleep.
I woke up the next day to find a wide range of responses. I was elated to see that more people 'liked' my post and commented in agreement compared to other posts of what you would expect the radical left to write. (I know, I'm a Facebook fag)
Nearly ten people denounced Antifa, and decided to leave the group.
Other people... well.. were pretty much what you'd expect. "If you aren't willing to punch Nazis then you are literally a nazi" etc. These people will take a lot more effort to reach.
That being said, I have not been removed from the group, though the leader made a post warning that any Nazi sympathizing will result in a ban etc. So I suppose I'll keep going until I'm banned.
Moral of the story: not every leftist is fucked. Talk to people, don't be afraid to talk about your ideas, and accept some of them may be wrong. Most of all, don't resort to violence.
Stay classy voat.