I'm not a lawyer but am pretty sure it would fall under any number of other laws if someone was to get hurt or you caused a disruption. There doesn't need to be

I'm not a lawyer but am pretty sure it would fall under any number of other laws if someone was to get hurt or you caused a disruption. There doesn't need to be a separate law protecting you from someone saying something you find objectionable. - disturbing the peace ( if nobody got hurt ) - causing bodily harm by criminal negligence - inciting to riot