> "when they start looting, we start shooting"
Umm... except that’s not what he said though. If it was, I would completely agree with you that it is an incitement (more accurately, a proclamation) of violence. But what he actually said was:
"when the looting starts, the shooting starts"
And, per Wikipedia:
"He said that he was not aware of the phrase's 'racially-charged history'. He added that he didn't know where the phrase had originated, and that his intent in using it was to say 'when there's looting, people get shot and they die.'"
So his statement is not an incitement, but a prediction. You may believe that Trump is lying about his intention, but that's a different debate.