I’ve been in this situation directly and I review these situations for proper use of force for our department’s internal reviews. If this would have been one of our officers, we would dismiss.

This doesn’t justify punching a subdued suspect.

See this attitude endangers my life and my officer’s lives. This would be a dismissible offense for our state department.

Again, none of that provides reasoning to punch a subdued suspect.

Again, driving crazy or not crazy during a police chase does not justify this use of force.

That’s not listed anywhere in the SoP, and is explicitly forbidden in the uniform use of force policy. Once a suspect has been subdued, punching is considered excessive use of force. Cops beat this all the time because they are able to embellish the incident without proper body cameras.