Would I distance myself from MLK? no. From the black panthers? yes. There is a vast difference between believing something to be true, and wishing harm upon those who refuse to acknowledge that truth.
Are there any injustices you see in the world that aren't also the popular opinion in your peer group?
Boy, what a loaded question! Tell me, do you still beat your your wife? But seriously, do you think there are any injustices in the world at all? It sounds like they don't count if they come from, or ar at all influenced by, one's peer group. How do you propose to find justice and injustice if not by agreement by the people that make up society?
Second, by your definition of harm, if a restaurant refuses to serve black customers, and people boycott it so the owner must close down, they have wished him harm and are on the "black panther" side of your equation, yes? Even if he must only change his policy, his "right to think" has been impinged upon, so I suppose that is also harm, right?
Are there any injustices you see in the world that aren't also the popular opinion in your peer group?