This goes under the category of liberal/progressives emboldened by authoritarianism at the national level, to bring that same abuse of power to the local level.

This guy was a parent with concerns about school policy where his child is schooled. The board had a Moscow Central Committee approach, where all questions had to be submitted in advance in writing to the board members (meaning they could simply not answer and leave unvoiced any questions that were inconvenient to them).
So this guy stood up and asked his question, and the audience clearly welcomed the question.
But the "security" thug (an off-duty prick cop) went way over the line and shoved the dad around, then cuffed and arrested him for no reason. Which the audience clearly objected to.