I'll be amazed if the kid is punished in any way.

He kicked in the head an unconscious man who had been holding an American flag.

Of course he's going to get away with it.

His parents likely support the violence. His teachers certainly support the violence. His friends probably think he didn't go far enough. The police in Portland have proven to be on the side of the Leftists (in general, most of them), and protect violent Leftists. Portland's mayor and prosecutors and judges are Leftists and completely support and encourage Leftist violence. I'll be amazed if the kid is punished in any way.

Portland is a shithole.