There is a fundamental difference in your example in the fact that it calls for action/violence. If he had said, for instance, that every child needs to be mol

There is a fundamental difference in your example in the fact that it calls for action/violence. If he had said, for instance, that every child needs to be molested, that would be more in line with your example. And that would no longer be acceptable. Outright racism and similar views are indeed less tolerated nowadays, but this is a whole discussion by itself. I'll just add that, from my POV, they cross the line from the "opinion realm", which together with a number of other arguments justifies non-tolerance of these views.