The same guy who broke his sign yelled that he had a "weapon," likely in an attempt to incite the crowd to physically attack him.
The guy is a scumbag and has been identified as a write for Netflix. In another interview I saw of this protest he repeatedly drones on about his tranny kid, then he goes on this spiel about how he's protesting because he's so lucky he's in a "liberal state and liberal city," as opposed to a red one where people would see Chappelle's special as a reason to hate trans people or some shit. Real paranoid schizo crap that illustrates he's a completely mindless consumer who totally eats up mainstream media stereotypes and fantasies of conservatives.
Where it gets really crazy is he mentions that, "some people will think it's ok to make jokes at the expense of others with no real consequences for it," implying that people making what a few — not all and certainly not most — would consider an "offensive" joke should have actual consequences for doing so. Given the flow of the conversation it seems very much like he believes that jokes he doesn't like should be policed and people should face some sort of consequences, whether socially or legally for telling them — because he doesn't like them.
These people are off their rocker insane ideologically obsessed lunatics. This guy not only very clearly couldn't control his anger, so he committed assault, battery, larceny, and property destruction, he also tried to incite a mob to violence and advocates for nobody being allowed to say things he doesn't like. He should truly be institutionalized because he's psychotic.

These same assholes never have a problem laughing at everyone else's expense, even celebrating it, but the moment they're the butt of the joke — you know, treated like equals — they have a full meltdown and victimize themselves.

That video has a lot to unpack, too. Besides that insane Netflix writer, you also have a woman who continuously nearly hugs the guy, then everyone acts like the guy is invading her space — we even see a soycuck trying to get the guy to back up.
Then you have the mob screaming at him like a bunch of retarded children throwing a temper tantrum.
There's a ton of media looking to capitalize on it all like the bloodthirsty assholes that they are; we of course know that they'll still spin it to make the guy look bad and not the actual crazy crybully mob.
Finally, there's a chick who proves that these losers are pretty much a religious cult of self-worshiping assholes, as she screams "repent!" while bashing on her stupid little tambourine.
Why anyone actually concedes to these pieces of gutter trash is completely beyond me. It never serves any good. They only do it because they enjoy holding power over other people. It's exactly why they're constantly attempting to exert control over others. They do it because they lack any meaningful control over their own lives and joining a mob makes them feel strong, when the reality is they're a bunch of weak and fragile pussies.