How the bloodthirsty mob of police supporters are destroying America

"How are you okay with cops punching someone in the face with handcuffs...."

So what if another thug in cuffs gets slapped in the face. That's probably the only punishment he will receive.
The world is a mess because lawbreakers are not punished.
The wicked are allowed to murder, rape, steal, shoot, stab, kidnap and torture children, and all they get is a slap on the wrist.
Some Leftist, virtue-signaling Judge will let him go with no bail and an ankle bracelet.