You said it yourself though, the market isn't completely free, and this is widely believed to be a good thing. You cannot discriminate against me because you d

You said it yourself though, the market isn't completely free, and this is widely believed to be a good thing. You cannot discriminate against me because you don't like where I come from. You cannot discriminate against me because of my race. Some people believe these protections should generally be extended to beliefs or political tribes or other forms of identification.