Let the punishment fit the crime. Protect personal property. Protect personal liberties. Do not legislate personal behavior, opinion, speech, or beliefs.
It is only when those behaviors prevent others from acting upon their personal liberties and properties is when laws should be come into effect.
So you think not being allowed to take any bus, any cab or order a meal in any restaurant does not constitute an attack on your liberty? I wonder what the hell those blacks got so upset about in the 60s.
Every single example of segregation that you have just presented were universally present in southern states in the 60's
because of state segregation & 'Jim Crow' laws that compelled private business owners to do so. The "Freedom Rides" events are the prime example of this. The cross country bus companies couldn't have cared less if there were blacks on the same bus as whites, but couldn't allow this to occur in certain states
because of the law. The same was true with the segregated bus stations, maintaining multiple facilities was more expensive than intergration, the free market most certianly would have fixed this one in the South if left to it's own devices, because that is exactly what happened everywhere else.