I think your numbers are WAY to high...put it this way:
I have worked in law enforcement for 22 years, I've been working with OR adjacent to officers and deputies from probably 20 something agencies from KPD/KCSO to FBI to UT Police to THP to every surrounding county. Of all those officers, I've worked with directly or seen in a professional setting during that time i'd estimate 88% were fine, normal everyday people, who wanted to do the right things and what you would expect from your officers. Another 10% were people had other negative work-related personalities like you would see in YOUR job (lazy, political, back-stabbing, jealous, etc) or just didn't have what it took to DO the job well (sometimes they were washed out, sometimes not depending on how small your department was).
the other 2% were the people that anti-police BELIEVE all police are, the liars, the criminals, the bullies, etc. And 99% of THOSE people never make it far and are washed out pretty quickly, especially in the more modern larger departments. Regular officers don't like them, don't want to work with them, and don't want legal issues because of them.
The only time I've EVER witnessed an officer purposefully being racist or bullying was a Union County jailer in the early 00's who had NO training or education. He was fired after we reported him for his statements.
It's just not what you think it is in the world of policing. There are ALWAYS going to be dumbasses in every profession, but the politics in certain departments is what's worse than actual officer behaviors on the streets. You get one bad Lieutenant/Captain/Sheriff, especially in the smaller rural counties, that's where the true issues are!