https://portside.org/2017-12-18/king-and-controversy

'It was controversial, but controversy wasn’t something he shunned; controversy became the system through which disagreement and debate could be heard. He was comfortable with that. He welcomed it. That aspect of his history is never really discussed.

'... The vested interests don’t want us speaking of Dr. King in radical terms. The great tragedy and irony of it all is that the public hungers for voices that are driven more by these moral concerns.'

Singer and activist Harry Belafonte
on Rev. Martin Luther King, Jr.'s turn
against the war in Southeast Asia and
toward  cross-racial, anti-poverty organizing