The fact that the first comment that was posted here was just more critique about the original blog post and how supposedly "wrong" it was illustrates how much of a problem this has become. Whether or not his opinion is wrong doesn't matter. What matters is that he expresses it as an alternative perspective to mainstream conciousness.
Problems are solved and society is moved forward by a multitude of various opinions, all right and wrong in their own ways, interacting with each other. Each perspective provides a unique method of solving a problem which may not yet exist. The more perspectives we have, the more ideas we have to work from when we try to solve a problem.
By violently critiquing such controversial stances, we are indirectly silencing those voices, and ultimately destroying our own ability to find progressively better solutions to problems, because we get stuck inside a single point of view and refuse to move outside of it. It is not simply a matter of ignoring trolls either, because many of the most hurtful comments, at least in my experience, are otherwise highly intelligent people who completely missed the point of what you were trying to say, and have spent 10 minutes writing a scathing critique against a nonexistent problem.
If we continue to censor ourselves, it will destroy us.
"I may not agree with what you say, but I will defend to the death your right to say it." - Voltaire