NOM and FRC are hate groups, I'm surprised you didn't mention the Evangelicals and their missionary trip to Uganda to encourage the government to make homosexuality punishable by death. Christians are evil, and they can't fathom ever being in the wrong.
Speaking as a non-Christian; it makes me want to beat my head against the wall because even I have enough knowledge of Christianity to know that what they are doing is not Christian at all, let alone following the tenets of any faith
I honestly think we need some kind of checks on the whole matter. What form they should take is the minefield, though.
It doesn't help that ironically the conservatives have co-opted liberal beliefs for their own benefit. Namely, the dogma of tolerance, political correctness, and equal consideration. They know everyone thinks many of their stances are bigoted and hateful, but as long as they can say that tolerance and PCness requires respecting their beliefs, and as long as they can leverage the growing cult of centrism...
I imagine they escape the terrorist label because a)they don't directly attack and b)they aren't using actual weapons such as bombs or guns. Personally the only difference I'm seeing is that they're taking a roundabout, passive-aggressive route to terrorism. And anyone who's dealt with passive-aggressiveness knows that means they'll get away with it legally, it's "not their fault" people died since they didn't pull the trigger. Which of course, is bullshit. Is a conspiracy still a conspiracy if it's exposed?