If generic, or as a principle? No.

If they say "pick up weapons and shoot those who dissent"?

Then they're advocating or threatening, and that should be handled similarly.

What about that time De Blasio quoted Che Guevara "Hasta la victoria siempre"? Any problem with that? It's like quoting Hitler about victory.

The point here is that people aren't going to agree on the rules - so asking to hand this judgement process over to Corporations is lunacy.

I think comparing "ever onward to victory" to "when the looting starts, the shooting starts", i.e. "I approve of and will authorize the use of lethal force for property crimes" is a little of a stretch.

Or "vicious dogs" for people protesting at the White House. These are directly relevant.

"I will use the unlimited powers of our military" - so many problems with this statement.

This is someone making direct and focused statements of threat and intimidation, who has a history of racist and violence-encouraging statements, from "punch him in the face, I'll pay your legal bills" and on.

The challenge is that finding left-leaning populations actively, pro-actively advocating (sorry, "warning") of violent action is a lot more challenging.