Banned Book Week is Over, now it's Banned Speech Incident

Our local paper reports on a recent incident, where a mixed-race child was taunted by a another group of teenagers at a skate park.  The taunters (allegedly) shouted "white power" and waved a Confederate flag.  The incident is being investigated as a possible felony "hate crime".

This doesn't fit my understanding of a hate crime, nor Wikipedia's, which states:

""Hate crime" generally refers to criminal acts which are seen to have been motivated by hatred of one or more of the listed conditions."

because no criminal act occurred. Unless the article is missing something, there is no allegation of violence, theft, bullying, or whatever.  Even a claim of "intimidation" seems dubious, as the alleged victim enjoyed the skate park for hours.  It seems that only the mother, who was not a direct target of the taunts, was offended.  And nothing sounds even remotely like a felony.

Now, I don't like what the taunters did, but, whether I like it or not does not matter.  It isn't illegal to shout "white power" or wave a Confederate flag, in fact, that's Freedom of Speech.

"I disapprove of what you say, but I will defend to the death your right to say it" (widely attributed to Voltaire but this is apparently wrong)

"The only valid censorship of ideas is the right of people not to listen."  ~Tommy Smothers