Did Castro shyt on black Cubans or just the white and mixed ones?
Castro isn't color blind. His father's first wife was mulatto and after the divorce the old man was bitter against blacks. The Castro boys grew up on a plantation and their father also housed and fed the local sheriff's deputies on the property. Anytime the Castros or the deputies went into the interior of the plantation were the (black) workers were they were armed with guns.
Officially Cuba is 65% white and 35% mulatto/black. Actually, Cuba is 60%-80% mulatto/black. Lying about the percentage of blacks allows the government leadership to remain majority white. Virtually everyone who works in the tourism industry is white: maids, bartenders, taxi drivers, etc. This is done to fool tourists that Cuba is majority white. Since the average salary in Cuba is $25 a month, these are coveted jobs.
If an interracial couple walks down the street together they will be stopped by the police. It is not just for prostitution but to discourage locals from creating more mixed children.
http://en.wikipedia.org/wiki/Racism_in_Cuba