The theme of the poem is basically that all American blacks are good, no matter what, and all whites are bad, no matter what. And it ends with wanting her (the poet's) people to rise up.
It is not a measured and intelligent look at race in America. It's an emotional glorification of victimhood.
It's not what I look for in a Supreme Court Justice. How many events were graced with her reading this?
here is one, with google you may find more.
http://www.pbs.org/newshour/bb/poems/jan-june00/project_5-31.html