Is there an explanation why so few black players seem to have interest pool at professional level..?
There three great articles about this subject written by the journalist and editor Mike Shamos. He wrote for Billiard Digest for many years and was a expert reviwer of the game. The artcale reflected more on the past than current players but are all well written and worth the read, you finish then better informed, they are:
"Parallel Universes"
"Black Ball"
"Pool Shark Fro Brooklyn" (Not written by Mike, but retrenched)