Actually, you're wrong -- during that time frame the Democratic party was responsible for holding the "Negros" back (but that's not the case these past 40-50 yrs. - unless you check the facts, of course, and don't blindly follow your beloved party) and not too many "Negros" (which is the incorrect term, btw!) were in those "trainable chimp" positions. After all, the Democratic party wanted the African Americans to remain slaves - forEVA!
No - they did not use separate restrooms -- maybe from where you're from.
Get a life - or get your facts straight. You've really quite a crass vocabulary.