Why, in god's fucking name, would the anti-immigrant protestors attack a state supported anti-nativist "protest" in the middle of the day in the middle of a city firmly under the control of the state, which explicitly has the cops swarming everywhere hoping they're stupid enough to do it? This isn't an RTS, you don't have to do anything to the fat marxist boomers holding the signs they were given by the Fabians, you can ignore them and go back to firebombing invader hives in a few days once the cops ease up.
The state is so desperate for any leads they started grabbing random community leaders off the street yesterday just to try and bait a reaction, go through phones to see if they can find a signal group, et cetera. They're used to idiots attacking Antifa while plainclothes Antifa and plainclothes police officers and useless fucking influencer youtubers stream everyone's faces to the police so they can spend a short afternoon identifying them and then fucking them over with the unlubed dick of the state. They're NOT used to a bunch of very coldly angry men dressed in all black politely taking the phones away from anyone trying to sneak photos of them and attacking the press.
Or, tl;dr: What would the point be of attacking the fat boomers other than to make people grunt and cheer over youtube streams and get everyone arrested? Why would they stop doing what they did already -- going out at night, in black bloc (not so fun now, is it Antifa?), attacking specific targets to terrorize the invaders into leaving?