A theory on "systemic racism" within police forces

What if, in the 60s, after passage of the CRA, police actually did start behaving themselves better? Then comes the 70s. by that time, other than still having a few older racist cops on the forces, you also had thousands of AA kids who had grown up in households with a mantra of "as for me and my family, we will hate the police".. and that attitude from parents was probably justified back then. These kids would later pass this same attitude down to their kids in the 80s and 90s. And further down the generations.

So now, beginning in the 60s, as police are starting to indeed behave better (in theory), many trends for African Americans simultaneously begin to turn for the worst. Black crime and financial situations are now Trending for the worst, instead of For the better as they had been for decades leading up to the 60s. These kids who are now older, are beginning to "see" what their parents had been talking about.

They have the CRA behind them. Their attitudes change. But they are getting poorer. Their crime rates are going up. Cops are still harassing them, but this time it was more often than not for good reason (unlike their parents). But in their minds it was their parents words playing out in front of them.

I don't feel I've stated all this as eloquently as I could have, but basically, at the same time cops began to try and behave themselves, is precisely the same time the "war on poverty" effects took hold, and broke the AA family.

Thoughts? Or better ways of saying this?