"Sedition" isn't a crime in the US, so I don't think it's "definition" is particularly relevant. As for the Smith Act, you know that the plain reading of the statute has been found unconstitutional, right?
He is not just ranting for ratings — he wants to actually see viewers engage in violence. That is illegal, anyway you slice it.
I didn't hear him say a word about "violence". Did you watch the video, or just read the headline?
Even if he had called for violence, it wouldn't be illegal. We have something called the First Amendment here, you might have heard of it.
“This is not time to analyze and pundit,” said Deutsch. “We need a revolution at this point."
He's calling for a revolution. That is inciting violence, dipshitzky.
Ever hear of the Brandenburg test for inflammatory speech? Considering that his viewers have already proven that they are prone to violence, his statement can be considered an attempt to incite violence. A felony.