Earlier quoted context omitted.
I don't think we should lose sight of just how batshit insane the NYT editorial was. We can continue to talk about Cancel Culture, but the opening assertion of the editorial was that we have a right to, "...speak [our] minds and voice [our] opinions in public without fear of being shamed or shunned." That's gobsmackingly wrong. It's the kind of sentence that, to me at least, grinds my mental gears to a halt. I just..…
It's not too far off. Any behavior which constitutes assault or harassment is not protected by the first amendment. Shaming and shunning can easily be considered harassment in the right context, though actually proving it in a court of law gets much trickier.
Shunning is never harassment. Shaming could be, but not on its own -- it would probably have to be either extraordinarily sustained/egregious and/or paired with credible threats to person or property.
Even emergent behavior that has the same effect as blatant harassment isn't harassment. I.e., sending one person 10K letters, some of which contain (even unspecific) threats, is CERTAINLY harassment. But if 10K people each send one letter, there are probably zero instances of harassment unless one of the letters is seriously egregious (e.g., contains specific and credible threats). And even then, the other 99,999 letters aren't instances of harassment.
Organized behavior might be. It depends on the amount of coordination. But probably the case is too difficult to take on.