Being a bigot and spouting bigotry is not illegal.  It is protected under the rights of free speech.  Even preaching bigotry is usually protected speech.  However.  

Targeted harassment is NOT free speech. 

Banning someone who supports and engages in the negation of other human lives isn’t an offense to freedom, it affirms it.

Freedom of speech does not include the right to terrorise other humans, to bully, to create an unsafe environment, to silence others.

Those who endorse a hateful style, who gather followers to engage in such fashion are no protectors of freedom, they would deny us all.

We can’t allow the rise to power of those who seek control using the endorsement of hate as a righteous cause.

Targeted harassment is NOT free speech.

Terrorism isn’t free speech, either.

Fighting back against targeted harassment is not reverse harassment.