Fire Bill O'Reilly for saying : Slaves who built White House were "well-fed"

USAToday reported:

Michelle Obama delivered a powerful speech during the Democratic National Convention on Monday, as the first lady shed light on the historical significance of her family's eight years at the White House as its first African-American family.

"I wake up every morning in a house that was built by slaves," Mrs. Obama said in her keynote address. "I watch my daughters — two beautiful, intelligent, black young women — playing with their dogs on the White House lawn."

As it turned out, one person was not entirely amused and went so far as to "fact check" the first lady's comments.

FOX News personality and political lightning rod Bill O'Reilly defended the working conditions slaves faced while building the White House by offering the following explanation during The O'Reilly Factor on Tuesday:

"Slaves that worked there were well-fed and had decent lodgings provided by the government, which stopped hiring slave labor in 1802. However, the feds did not forbid subcontractors from using slave labor. So, Michelle Obama is essentially correct in citing slaves as builders of the White House, but there were others working as well. Got it all? There will be a quiz."

How dare O'Reilly defend the practice of slavery!? He must be fired and/or resign for saying something so ignorant.