Why don't blacks just go back to Africa?

They are not slaves any more so why stay here? Obviously blacks are equal to whites so black Africa must be a good place to live, right?

Niggers need to either get the fuck back to Africa or die. They are the children of Lucifer. They spawn from the ashes of hell to reign chaos among good hard working white men. They are parasites of the world, abominations of existance. We must band together to rid ourselves of this insufferable pest.

Thank you.