I agree with you on many things, but not on this one. I see discrimintion as access to opportunity or more accurately, lack of access to opportunity that having the right connections provides. And unfortunately this ties into race because it plays into socioeconomic levels. I have seen it. Repeatedly.

MDs writing letters of reference for friends and family fraudulently claiming work experience for these people to help them gain admission to med school. Fraudulently claiming employment history and experience for family and friends to help them gain employment elsewhere.

Yes, it has been an eye-opening experience. If it happens in healthcare and it is done by professionals holding a universal badge of respectibility - the MD title- I can imagine that it easily happens in other industries. It is disheartening, but it is real.