While violently anti-slavery, I must admit that those who foresaw its abolition as creating huge problems for future generations have turned out to largely be correct.
Their diagnosis was correct, even though I differ greatly as to the appropriate treatment.
Here are some interesting perspective(s) (I include the “s” in parentheses because they are all from the same guy.)
From over a decade ago:
http://www.fredoneverything.net/Blowup.shtml
http://www.fredoneverything.net/Stability.shtml
http://www.fredoneverything.net/Underclass.shtml
http://www.fredoneverything.net/Opportunity.shtml
http://www.fredoneverything.net/Assimilation.shtml
And last autumn:
http://www.fredoneverything.net/LondonRiots.shtml
The guy comes from a position of experience and knowledge.