Guys a dangerous moron, but his talk shouldn't be banned.
Counter bullshit with facts. It's the only way. Making it illegal to say atudfnlikw thia only reinforces rhw conspiracy in the mins of the herd. You'd be better placed allowing the rally, going to it, and asking a bunch of difficult questions about the guy rather than banning or or protesting which just forces people further back into their ideological corners.
Most importantly: why is he nicknamed avocado, and how has this thread gone three pages without that being discussed?