I'm about 1/2 to 3/4's of the way through how to prove it and I'm trying to suss out one of MLK Jr's main arguments in this essay in a logical fashion. Any help

I'm about 1/2 to 3/4's of the way through how to prove it and I'm trying to suss out one of MLK Jr's main arguments in this essay in a logical fashion. Any help/feedback would be awesome (assuming you know what you're talking about ;)