The term 'hate speech' itself is nothing more than a disingenuous rhetorical device used to stifle the free exchange of ideas. The evidence lies in the adjective itself, which must be defended against before any controversy on the original subject can even be addressed.
"Hate speech" is subjective, since some people will take offense to something when others will not. "To think is to risk offending". The only exception to this would be a direct incitement to be violent.