Jefferson is remembered because he is a crucial, central member of those who Founded our nation.
His personal issues are irrelevant to that fact.
Blacks and Communists don't look at the issues with that mindset. If they did their hypocrisy would not be so blatant. MLK, Jr. was a plagiarist, a man of God that was a serial adulterer, beat women regularly and openly preached anarchy in his later speeches. His wheels were coming off. The FBI recordings of him were sequestered in 1972 for a period of time longer than that of the Rosenbergs. Think about it, spies recordings were sequestered and held from the public for a time less than those that would expose MLK, Jr. as a fraud.