You're partially right -- I have no support for the bad apples. That cop is an example of a bad apple who overplayed his hand in front of unbiased witnesses and cameras. The semi-bad apples are those cops who stand by and don't intervene in these situations because of the thin blue line code.
In my personal interactions with the police over the years, I have met mostly good ones. In one case, a cop lied in his statement on a traffic ticket about what I said when he asked me a question that I should not have answered, and since that was in the days before body cameras and personal recording devices, it was going to be my word against his. As it was, in those days if you took the traffic school opinion the charge was effectively dismissed, so I took the easy way out.
Another cop (Poway office of SD Sheriff) was too lazy to get out of his chair to sign off my equipment ticket, and then the SD City cop a couple of miles away just asked me to swing my car around so that he could see that I had reattached the front license plate without him having to get up.
I have worked with some Sheriff Deputies in the soccer world, and, as I have stated multiple times, I have family connections into law enforcement. Take your bullshit accusations and stuff them where the sun don't shine.