Just amazing. He addressed the issue of his race (and race in general) in a smart, political fashion. And of course, as is the case with all prime Em, he was able to do so without sacrificing rhyme.
I fucking love his use of assonance here:
"Hip-hop was never a problem in Harlem, only in Boston
After it bothered the fathers of daughters starting to blossom"
For to come off of the dark and provocative MMLP and do shit like this is just a testament to why he's the fucking GOAT.