I totally disagree.
If you tweet something inflammatory, and nobody replies, then you aren't heard.
If you tweet out something inflammatory, and 10 people agree with you, then you've been heard a bit.
If you tweet out something inflammatory, and 10 people agree with you, and 1000 people disagree, and reply and retweet to show their disapproval, and write articles about how wrong you are, well, they've just magnified the initial voice far beyond anything it ever would have/should have been. And that's when the real crazies catch wind of it, and others will back it just to contradict people they are used to disagreeing with because they have seen how much it riles them up.
I think there are certain people who should be put under a microscope, and these are people in positions of power who have the legal ability to make decisions about how society runs.
But this guy, he's just an attention whore. The more people talk about him the more his message spreads like an annoying plague.
I think he should be ignored, and I think the world would be a better place if people put half as much energy into spreading the word of well-meaning, educated people, instead of drawing everyone's attention to someone they disagree with. I think the same mentality is what ultimately got Trump elected.
My suggestion (to everyone) is, next time you see someone say something stupid, go find someone who said something smart and give them praise and feedback and retweets and likes and follows. Imagine checking social media and it was filled with quotes from smart people. The stupids should be buried under it, but we fail to allow this to happen.