In Theodore Roosevelt’s autobiography, he recalls a story from his time as Police Commissioner of NYC:
The many-sided ethnic character of the force now and then gives rise to, or affords opportunity for, queer happenings. Occasionally it enables one to meet emergencies in the best possible fashion. While I was Police Commissioner an anti-Semitic preacher from Berlin, Rector Ahlwardt, came over to New York to preach a crusade against the Jews. Many of the New York Jews were much excited and asked me to prevent him from speaking and not to give him police protection. This, I told them, was impossible; and if possible would have been undesirable because it would have made him a martyr. The proper thing to do was to make him ridiculous. Accordingly I detailed for his protection a Jew sergeant and a score or two of Jew policemen. He made his harangue against the Jews under the active protection of some forty policemen, every one of them a Jew! It was the most effective possible answer; and incidentally it was an object-lesson to our people, whose greatest need it is to learn that there must be no division by class hatred, whether this hatred be that of creed against creed, nationality against nationality, section against section, or men of one social or industrial condition against men of another social and industrial condition. We must ever judge each individual on his own conduct and merits, and not on his membership in any class, whether that class be based on theological, social, or industrial considerations.
Certainly a better solution than, say, lighting fires in the streets and threatening violence against those who promulgate ideas we find heinous.