That's not actually a threat. He's dancing on a thin line, but he hasn't gotten onto the wrong side of it yet.
"I'm going to cut Joe Blow's head off" is a threat.
"SOMEONE should cut Joe Blow's head off" may be promoting violence, but it's not a threat.
@mcfate Law enforcement should still have a conversation with him.
On what basis? This is like "Sure, the Fourth Amendment says they can't, but the cops should STILL search that guy because he LOOKS like a drug dealer."
What are they going to "converse" with him about? What if he tells them to go and kick some rocks?
@mcfate True. And I am sure he is being watched.
But if a regular human said this vs a billionaire, there would be a conversation.