Yes and no. There's no doubt LBJ had a hand in destroying the black family unit, but let's be super frank: there has been a non stop crime spree by African Americans, beginning immediatlely upon emancipation and continuing to this day.
The antebellum writings of Robert E. Lee's wife are very illuminating on this matter.
Did you know a young Lincoln was attacked by rogue slaves and almost murdered?
There came a time after emancipation and before the not so great society where blacks were actually entering the middle class, with intact American families, businesses and communities, as well as interacting with whites without suspicion or bitterness.
Then along came LBJ and “urban renewal”, bulldozing entire neighborhoods, businesses and family homes, to put up projects, no jobs. It basically rendered black men obsolete to families, replacing the income with a welfare check, and replacing well balance families and a disciplinary father figure with feral offspring of professional welfare queens....the end result which you can see today.
Some have escaped, but they are a minority of the minority.