Liberal Blacks are Parasites

I had the pleasure of engaging some uninformed Black liberals today on Twitter.
They claimed that what most informed Americans know, that proportionally Blacks are more apt to be looking for handouts than Whites, is untrue.  Black liberals are content to remain ignorant (after all isn't that what "rill niggas" are ignorant?). 
The US population circa 2011 was estimated at 308,747,508.
Blacks make up approximately 13% of the US population (that's 40,137,176) and of the 4,300,000 Americans on welfare, approximately 40% of them are Black (that's 1,720,000). So that's roughly 4.3% of Black population on Welfare.
Whites depending on how you count them are either 78% or 63% (the latter being White Non-Hispanic. George Zimmerman would not qualify for this definition of White). Let's use White Non-hispanic so we can make it a little easier for the racist Blacks to identify their enemy. That means there are 194,510,930 unambiguous White Americans. About 39% of welfare recipients were white (that's 1,677,000) making up 0.9% of the White Non-Hispanic population. You don't have to be a mathematician to know 4.3% >> 0.9%.

Liberal Blacks hate math, so they'll blame the numbers on "White Privilege", but that's just another Liberal cop-out. 
Proportionally Blacks are getting it ALL wrong yet they continue to believe the group-think BS spoon-fed to them by the left.  Will someone please tell me why?