You imply the video is "selective, as if they are extremely rare events that have been cherry picked over the years out of all context. However, it's only now that we have got so many video cameras so readily to hand that we are seeing this stuff. If we had been told about these things years ago without the video evidence we would have dismissed them out of hand and assumed the person making the claims was an anti-police bigot or had a suspect agenda.Which is a selection of a few encounters. Do you honestly believe this to be representative of all LE stateside?
Few of the incidents filmed could to anyone's mind have been justified no matter what the "context", I couldn't care less about the dog or the racoon (although shooting an overgrown rodent does seem a bit of a stretch) but shooting unarmed, non-threatening civilians at point blank range is murder, plain and simple, and guess what? Police officers aren't supposed to murder people, no matter how selectively they do so.
If the cops weren't engaged in brutality nobody would be able to film them being brutal, would they? So blame the brutal cops, not the people posting videos of them being brutes.