But it literally is not. You're not holding a counter-rally outside, you're protesting inside the venue, and he has every right and honestly has an obligation to kick you out. Nobody there wants to hear you, they didn't come there to hear you chant your shit and they'll be fucking damned if they have to listen to you screech your goddamned slogans for an hour. You can't be disruptive at a private event and get your ass kicked out then play the victim.