I heard a little bit of one of his interviews. He asked, rhetorically, how the flying instructors must have felt, after 9/11, who gave lessons to muslims who didn't care to learn how to land.
Some are saying he has "no right" to discriminate as he is credentialed by a government agency.
First, credentialing doesn't mean squat! Federal, state and local governments contract corporations and individuals for all manner of services, and something service-oriented like this is basically a license to operate, there should be no strings attached as to how the business is run as a private enterprise, as long as the purpose of the license is honored!
Second, while it sucks to live in a pc/diversity/multi-culti world, this guy could have conducted his business as he wanted...quietly.
Point two above should not have to be tolerated but it is what it is...until it can be changed.