Why won't the GOP compete for African American votes?

"In many ways, it's a shame that African Americans will vote overwhelmingly for Democrats. " ~Eugene Robinson, The Washington Post

This article is a prime example of why Black voters will not advance in the US if they only vote...or put their eggs in one basket a.k.a the Democratic party. What major improvements has African Americans experienced lately? Has the number of Blacks in prison decrease nationally? Probably not and that is due to the fact that our political leaders also have their own agenda that they want to accomplish.