How come the Democrats want to keep down Blacks?

From slavery, to JIm Crow Laws, to Affirmative Action. When does the hate stop? Why did the Republicans have to take them out of your plantations only for you Democrats to dump them in "da hood" far from your exclusive all white gated communities? Why Democrats did you have the Black kids bused into working cl White schools, but not let them go to your own kids schools in the suburbs?