never said to fight with fists. fight with words. know the law and be able to stand up for your rights verbally while video taping them. this does wonders for stopping police brutality!You're silly if you think fighting against the cops by yourself will do anything. If you aren't doing anything wrong and you know it why fight? If you put ego aside you can come back and sue, expose the injustice, if you cooperate completely and still get mistreated(which is rare) you have more cause to back your defense of their actions.
Grown ups fight legally, not with fists.
if everyone knew their rights and how to bring them up you can shut down a pig trying to get in your face and show them that they cant abuse the "power" they think they have. if you can make your case right there and get it on video and then post it other people will learn how to do the same and slowly cops will get that they cant just attack anymore.
what your suggesting is that despite being innocent you should roll over and give THEM a bigger ego to attack another bystander. maybe you get let go but what about the next guy this cop feels like harassing? what if the next guy is your friend?