But isn't the problem the fact that if nobody speaks out against them that they'll eventually continue to grow? I mean, a minority opinion graduating into the opinion of a majority isn't exactly improbable or unprecedented.
And if that doesn't happen, you'll possibly have something even worse; you'll end up with what's been going on with Muslims where people think all muslims are extremist terrorists who hold radical views (because of a minority). Obviously that's not the case but many people really do think like that. Not helping matters is their most prominent leaders remain silent on those extremist views. Sure, you'll have a few leaders here and there putting in PR time while speaking out against extremism, but there's no conviction and it's not backed up by actual actions. The moderates and their leaders should be the fiercest fighters of that extremism and that's just simply not the case.