Just as racism should not be required by law as in the Jim Crowe laws and slavery laws, racism should also not be outlawed. The government should make NO laws regarding race, religion or creed.
If one business forbids blacks, that provides an opportunity for other businessmen to create businesses that cater to blacks.
Big deal if someone is racist. It doesn’t matter very much. Racism is not an obstacle in today’s America. We DO have the right to offend. There are much, much, much worse things than hurting peoples feelings. There should be no laws requiring people to be "nice". We have the freedom to choose whether to be nice or not without government interference.
All People discriminate. This is a good thing. Discrimination merely means that people discern what they believe to be in their best interest. You discriminate when you shop, when you marry, when you choose a place to live, when you decide which schools to apply to, when you decide which jobs to apply for, when you decide which clubs to belong to, etc. Many of these decisions have a racial component. Race may be a factor in these decisions. There is noting inherently wrong or right about that. It is a matter of taste and personal experience.This is perfectly normal and part of human nature. This is neither good nor bad, this is just the way it is.