Unfortunately I have to agree here. The left's outright refusal to distance themselves and condemn extremism from their side is very disheartening. They're rightfully demanding right wing politicians to distance themselves from right wing extremism, so you have to assume they know full well what they're doing.
Ultimately you have people like
@Xzi who is pushing extremist propaganda like misrepresenting philosophers to fit their views, justifying extremist violence as self defense or arguing that ANTIFA can't be fascist because they call themselves "Antifascist Action". Saying a white supremascist group can't be advocating white supremacy because they call themselves "anti white supremacists" would literally be the same argument. Their behaviour is nonsensical, asinine, vile and disgusting.