Here's the opinion my feeble brain has formed over the past 40 years...
Do not read this if any of you are easily inflamed or jerk off at the sight of a squad car. You've been warned.
There are generally three kinds of people who become police officers.
1) People who genuinely care about their communities and who are honestly out there for no other reason than to help people who need it, and protect other people from folks who want to do bad stuff. These are cops who are disappointed and feel bad for someone who got busted for drugs or made bad choices as a kid, and feels genuine heartache that he or she had to shoot someone or cuff a guy in front of his kids. These unfortunately are a small minority of police officers in my view.
2) Bullied, socially awkward, and non-physically strong/coordinated/athletic people who never fit in as kids, didn't play or succeed at sports, and who didn't succeed with boyfriend/girlfriends. These become cops who have a bone to pick with the general public at large and who take a lot of enjoyment out of "busting" people. They see it as vindication of the shit people did to them in the past. Thankfully these are also a small minority from what I've seen throughout my life. We have one currently in the town I live in who I went to high school with, and he in fact 100% takes joy in people's screw ups and bad fortune. He's said so.
3) The last group is by FAR the most prevalent and these folks should not be police officers. These are the ones who get into the profession for the thrill and status of being a cop riding around with 30 lbs of body armor that makes them look like Bret Bielema at his fattest, 12 extra mags on their vest, and pray everyday that they get to finally use that AR that's been riding around in the back of their Explorer for the past several years. They like to be "in the shit," to use a fitting phrase from the movie Full Metal Jacket and usually have some shitty tattoos with blue lines on them and the obligatory skulls and American flags worked in here and there. These guys/gals are testosteroned to the max to make up for their small wieners and other reproductive appendages, and they get a hell of a lot of joy out of fucking with people. They love to tell everyone they meet at first sight that they're a cop and how they've got 17 different certifications in SWAT "schools" and have a GM rank in USPSA (google it), but if they come across a kid crying on a street corner or choking on a jolly rancher they wouldn't have a fucking clue what to do about it, nor would they care because it would take away from their arrest quota. You can easily spot them by their huge blue line American flag in the back window of their lifted pick up and the Smith and Wesson decal on the rear passenger window. These cops don't give a F about anything other than being aggro with everyone they come across, including their families. Know this, folks......these cops do not want low crime and safety. At All. They want you to break the law so they can put their authority on you. They WANT crime so they can play pretend Afghanistan. And unfortunately this group of cops is by far and away the most numerous and common one out there. Easily 90%. And these are the ones who killed Floyd, and Walter Scott (forgot about him, didn’t you...), and Taylor, and a whole bunch of other people. Until there's no incentive for these types to be cops, they will be the norm, not the exception. Make no mistake, these guys/girls want more crime. Not less.