I must confess, I believe if you are clearly guilty and run from the police, they should be able to beat on you a little. If it came up on a ballot I'd vote for it.
Are you serious? Why do you think it's okay for police to beat on suspects?
I mean, if you're guilty, I think you deserve it.
At the point a suspect runs from the police, they're innocent, because, by our laws, they're presumed innocent until they've had a trial. So, even if you do believe in harsh punishments for crime, even if you believe police can be responsible for punishment, a beating by a cop can only be abuse. It's horrid to support abuse.
You live in a bubble. I see on the news all the time where criminals are beating the shit out of police officers and the department bends over backwards to make the criminals look like victims. The cops can take a punch and punch back a little.
I think you are making a lot of assumptions about what is going on. Have you tried seeing it from the victims point of view? I think you need to get a bigger world view and reevaluate your ideas.