Would any of you please show credible proof of your claims of burning things down, etc.? As far as I know, it is mostly an idea, one that has been around for decades, unless you only listen to right-wing propaganda. There are groups, yes but none of it is centralised and almost always the goal is a peaceful non-violent protest.
https://www.washingtonpost.com/outlook/five-myths/five-myths-about-antifa/2020/09/11/527071ac-f37b-11ea-bc45-e5d48ab44b9f_story.html