In a free society, the right to discriminate is essential and absolute. A free society must include the freedom to discriminate against any individual or group for any reason and on any basis. A free society may or may not be free of discrimination, but a free society is certainly free of discrimination laws. By their very nature, the rights of private property, freedom of assembly, freedom of association, free enterprise, and freedom of contract include the right to discriminate.
-Laurence Vance
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https://www.thenewamerican.com/print-magazine/item/36509-rethinking-discrimination