There is a huge bias here regarding police, and to say "the sheer quantity of questionable events [regarding police] shows there's a systematic problem" is definitely a stretch. The only issue today with these statements is that it's a buzz-worthy topic, so mainstream media - as well as the internet - has jumped on the hate train. I definitely understand your ire for those sentiments, it's ridiculous, slanted, and slanderous towards the LEOs who actually protect and serve. For example, if I were to have a good interaction with a local cop (was able to have a good, long conversation or maybe got help fixing a flat tire, etc.), I probably wouldn't think to post that interaction on the internet, and if I did, nobody would probably give a rat's ass. However, if a local cop harassed me, the first thing I'd do once I was around a computer would be to complain to anyone listening, and everyone would have their two cents to contribute. It's a shitty attitude, I know, and one I struggle with changing, but it's an attitude I share with a vast majority of Americans.

Now, the thing you have to remember is people are far more likely to be outspoken about a slight against them than something good (hence the "suggestion box" instead of a "compliments box"), which is why we hear about the crooked and corrupt police in the news. The question is, do we let this "tree" keep producing "bad apples", do we go after the "bad apples" specifically, or do we cut down the whole damn "tree" to spite the apples? America is currently the land of extremes, where we want all or nothing, no compromises. That means that society, as it is, either wants to let the whole tree (America's general law enforcement community) become corrupt by ignoring the problem, or wants to cut down that tree and try to rebuild a better, healthier tree to replace the corrupt one. I'd like to think the answer is finding a middle ground to work from, but I'm no expert, just an underachiever trying to figure out this weird, crazy world. Basically, in my mind, in order to fix not only the LEO community, but society as a whole, we're going to need to convince AMERICA to pursue that elusive middle ground as opposed to choosing one way or the other, and that's something that will take decades, if not generations to do.

Long story short, LEOs are generally good, reputable people who get a bad rap for the <1%, but we can't do anything about that until American society adopts the idea that not every situation is black/white, and while being more difficult, it's better to praise a positive action than to shun a negative one.