The Constitution provides for equal opportunity under the law. I completely agree with this.
Maddow in her interview with Rand Paul she asks if he favors businessmen discriminating
"...on the basis of a characteristic that they didn't like as a private business owner." She alludes to race in a race-baiting manner when in fact one could consider Starbucks Coffee is discriminating against tea drinkers or juice bar patrons.
Merriam-Webster defines discriminating as the
ability to perceive peculiar features.
If you choose to not discriminate I do not think I wish to know you much less consider you a friend. If you choose to not exercise your ability to tell the difference between good and evil, good workmanship versus bad, or any other host of daily decisions that make you a competent judge of life around you, then you are a waste of humanity.