Plus, I know people who have worked for agencies of the same government that fights to protect NAMBLA's right to espouse its despicable views.
I should probably hold them and their views in contempt, except for the fact that I think a bit more deeply than that, to understate it.
See the difference?
I'm not sure what it is NAMBLA 'expresses' publicly, but what they profess is a criminal act in every jurisdiction in the land and therefor is not protected speech.
Think a little deeper --- you may come to understand that all speech is not and should not be protected.