Look, if it's too tough, or too dangerous, or just a load of PC bullshit being a cop, there is a very simple solution: don't be one. Be anything else. Be a plumber; a good plumber can make great coin. Worst case scenario, you come into contact with human waste while wearing nitrile gloves.
I get that cops see idiots and assholes at their very worst, that on an average day, probably 95% of the people they encounter (other than their own colleagues, but probably some of them as well) are jerkoffs, skells, criminals, fucking lowlifes. That can't not color your view of humanity in general after a while. It's the same thing prison guards deal with.
I couldn't be a cop in even a small town without wanting to crack some fool's skull after like a week. My threshold for jerkoffs is low enough, but said threshold for, say, paroled tweaker who terrorizes his wife, beats the kids, kills the family pets, etc., is non-existent. Does not exist. It is my sincere belief that the world would be a better place without said violent, abusive assholes who prey on the weak and powerless because they have balls of their own, or mommy and daddy were mean, whatever. So here's the thing: that is precisely why I would never consider being in law enforcement -- because I know I'd be terrible at it.
And if cops are killing unarmed citizens on the street for bullshit crimes, just to show who's in charge, maybe the public is better off with those cops doing something else. The good news -- and from the way these whiny-ass cops and their douchebag supporters act, it might actually be news to them -- is that no one forces anyone to be a police officer. Really? Yeah, really. There's no conscription. It's entirely voluntary. I know this will blow peoples' fucking minds, but I swear to the Flying Spaghetti Monster it's 100% true.
Nobody forces anybody into any career in this country, which means that if your line of work seems to dangerous and unappreciated, well, you just show 'em all and pick another goddamned career. We all know you got into it to "protect and serve", but when you're no longer doing either of those things, but simply using tactical violence to enforce absolute compliance, maybe it's time to try another line of work.