Calling for vigilantes is a direct call for violence.

https://www.newsweek.com/blm-leader-reaction-daniel-penny-verdict-jordan-neely-1997953

Calling for vigilantes in a race baiting rant responding to a correct verdict isn't a "dogwhistle" that could inspire violence. It's a direct and deliberate call for violence.

It's also speech that I'll condemn in regard to the speaker being wrong both factually and morally; but, of course, I defend his right to say it.

Now, if he posts Penny's address, and tells people to go get him, that's not too different from taking a contract out on somebody. That would touch where I draw the line.

Still, this is, and should be protected speech under the First Amendment. It should also apply to all sides.