"We ought ... to recognize that most people can't actually be reasoned with," and that "haters gonna hate." That may possibly be true, Professor Kingwell, but to impose "curbs on speech" in the way you describe edges over into authoritarianism. Besides, it would never work: "Talkers gonna talk," and they'll talk even more if moves are made to control their freedom of expression. I can hardly believe you are suggesting this stuff.