There’s that meme that says it’s hypocritical to be intolerant of intolerance.
I suspect that meme can be countered by a similar short and sweet meme: no one says it’s hypocritical to shoot someone who is on a shooting spree.
(In fact I suspect a large percentage of people who repeat that anti-tolerance meme are highly in favor of being able to shoot such shooters. Thus, they are the ones being hypocritical, because the situations are actually analogous)
Meta Utopian Dreamer 
I agree. Self defense and defense of others is moral. A lot of the time, opposing immoral view is a waste of time (you are just feeding the trolls), but it is not “wrong”.
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