But there is a hell of a lot of proof that it was trump supporters. A lot of them actually were well know Qanon members. Also why would antifa buy his products and support him by buying his merchandise for this one thing. Name one little bit of evidence or one antifa member to be there.
And also the reason they did it was because trump told them to do it in a rally he held, now if it was just a normal rally like he holds all the time why would antifa be there counting that there was no plans to do that before that rally