MLK's legacy is enormous and like the legacy of all great men, ambiguous. He was no plaster saint --none of them are: we're talking great men here, not great statues-- and those who followed him were and are, well, let's say, a mixed bag.
But I have a reason to mark his birthday, a very personal one. The man I love most in this world, whom I have known for over 15 years, with whom I have had the most significant relationship of my life so far, is a black man. And I am pretty sure that without Martin Luther King, he and I would never have met, much less become so much a part of each other.