So what did we learn from the Rittenhouse trial?

Hmmm ... if there is a lesson learned, it's that when there is an episode of police misconduct, it doesn't give some people a right to destroy the city and the property of innocent people. And, if the politicians that run the city, county and state don't take the immediate steps to protect their city and the property of the innocent, expect that the locals who do love their city to step in and try to protect their city from those trying to destroy it. And, if those who are trying to burn down their city threaten the lives of those trying to protect their city, then using deadly force to defend oneself is justified.