For all their rhetoric about tolerance and diversity, when it comes right down to it the Tolerance Police really don't give a rip about anything other then imposing their own political agenda. And if you don't go along with it, they'll call you names, question your integrity, and now this.
Most gay rights groups have not explicitly called for violence, but they positively glory in hurling hateful epithets like "bigot" at their opponents and accusing them of all sorts of malicious motives simply because they don't want to be forced to repudiate their beliefs about sexuality. Hate speech, in fact, is becoming their specialty.
At some point, someone is going to start labeling them as hate groups. Heck, why not now?