And schools and other public venues have been intimidated by this argument, and have often spent hundreds of thousands of dollars on police and other security measures in order to hold these little hate events. They are afraid of spending the same amount of money in legal fees on court cases (that they would likely win) but instead spend more money for security and police protection. It makes no sense to me.
While public venues should be open to all parties as determined by the constitutional right to free speech, it is also a logical argument that if someone is going to incite a riot, that maybe their right to free speech is not so free. In other words, if somebody wants to stage a white supremacy rally, they should be charged for the cost of security if they are going to be inciting riots as a result.
And send the little boys home to their mommas.