There's an old saying that one catches more flies with honey than with vinegar. So it's not surprising that the rude and disorderly tactics don't work. People just stiffen up and push back harder. In the war protesters' defense, I must say that the violent tactics were only tried after the peaceful demonstrations were shown not to work either. We progressives were simply outnumbered in those days, and nothing could have worked to stop the senseless war we were destined to lose anyway.
Today we are seeing the right wing reactionaries using rude and disorderly tactics to get their point across. And just as the 1960's protesters looked like a bunch of fanatical anarchists to the mainstream back then, the rude and disorderly fanatics disrupting town hall meetings today look to us in the mainstream as violently disrespectful of democracy and the rule of law.
So what's the cure? As with the terrorist attacks, if we diminish our own civil liberties as the Republicans did, the terrorists have won. We do need, however, to enforce established norms of civilized behavior. Those who are vehemently out of order and disruptive need to be lawfully removed from the discussion until they learn how to behave in a democracy.
From Wikipedia:
The two houses of the United States Congress have also adopted the Sergeant-at-Arms. In both cases, the sergeants are charged with the maintenance of order on the floor of the chamber (in the House, he may "display" the mace in front of an unruly member as an admonition to behave); they serve with the architect of the Capitol building on the commission that oversees the United States Capitol Police and security for the Congress, and they serve a variety of other functional and ceremonial roles. ... In imitation, a variety of other bodies--from state and local legislative houses (city councils, county legislatures and the like) to civic and social organizations--have created posts of sergeants at arms, primarily to enforce order at the direction of the chair and to assist in practical details of organizing meetings.
I don't think it will ever come to the point that this deliberative body will need a Sergeant-at-Arms, but what should we do if there should be some sort of intentional disruption of the meeting? I suggest that we patiently wait out the disruption, and if in a resonable time the parties are not compliant with moral standards, then a disorderly persons in public report should be made to the Torrance Police Department.