Do you think there' s a pre/post-Reagan black culture?

This post had me thinking about this. In pop culture, it seems like black culture really took a dramatic turn around the 80's with crack and (not unwarranted, but often destructive) counterculture. I'm thinking of the Sidney Poirer's of the 60's and 70's, all the way to Bill Cosby's of the 80's, who all seemed relatively well integrated and maybe even seemingly comfortable in America.

Are these just singular examples? Was it just an illusion and black Americans are in fact the most integrated today? I mean, I know slavery basically destroyed African Americans and the effect is still felt today. And I understand things were very segregated and there was and still is a lot of racism, and that this has probably always been reflected in things like unequal arrest and incarceration rates. But was there not a big move toward the late 70's to integrate more, and was it not working better than any time in history?

So did Reagan ruin black American families worse than at any point since slavery? This is just my perception simply from media. White male, born '80.

Any good reading on this subject you'd recommend?

I know it's silly but these Ye lyrics always seemed to ring true:

How you stop the Black Panthers? Ronald Reagan cooked up an answer. Crack raised the murder rate in D.C. and Maryland, We invested in that; it’s like we got Merrill lynched, And we been hanging from the same tree ever since