Free markets should only reduce irrational discrimination based on race. If discrimination helps your business, it is rational, and will continue. For example,

Free markets should only reduce irrational discrimination based on race. If discrimination helps your business, it is rational, and will continue. For example, if 5% of blue people trash your house, and you can't distinguish the 5% from the 95% easily, it may be rational/profitable to discriminate against blue people.