The conversation should exclude bad faith participants.
Not how politics works though. Everyone has a say. If a minority freak out on twitter and some politician or some company responds to it nobody can stop that.
So maybe a solution is we stop placating vocal minorities with bad ideas as much as we do even if they get offended. Maybe we as a society should have more conviction and grow a backbone. Maybe we should do what is right rather than what is PC or the latest twitter trend.
Twitter sucks because the vocal minorities become the tip of the spear where before we could ignore them easier if we wanted.