Chris Rock said it best. MLK was a man of non-violence, but if you see MLK Blvd, There's some violence doing down.
I liked a Simpsons episode where to illustrate just how lost they were in the hood, they were at the intersection of something like MLK Boulevard and Cesar Chavez Avenue. Years ago in a town here in northern NJ with a sizable black middle class there was (black) resistance to renaming a street for MLK; they understood the impression that it would give to the world of their otherwise decent area...