No but it is clearly far left to take over city blocks, declare autonomous zones, destroy public property, terrorize citizens and public officials, etc. and there's plenty of Antifa sympathizers or supporters on Twitter. There's plenty of moral hazard with the amount of influence and propaganda power that tech companies have today and it's a very corrosive, dangerous, long-term destructive thing that scares me far more than David Duke.
I regularly see promotion and defense of rioting, anti-white racism, and threats of violence from Twitter. Hell, I'll never forget all of the blue check marks saying they wanted to punch that high school Covington kid for literally standing in place with an awkward smirk.
Twitter absolutely safe-harbors the extreme left. I think it's the only tech company I would refuse to work for due to their moral failings.