Few americans, outside the extreme fringe, would agree with you and Ayn Rand Paul that businesses should be allowed to discriminate against blacks, women, or disabled people. Whether or not you want to call it philosophical musing, mental masturbation, or whatever.
As for being brave in speaking the truth, I recall that Rand Paul did a 180 degree flip flop the day after rachel maddow, and then chickened out and cancelled his Meet the Press interview. Only three people in the history of MTP have cancelled at the last minute, one of whom was Louis Farakan.
Bravery and ideological principle indeed.