I tell you where you draw the line. You draw the line with en ies that hope to have any sort of commercial relationship with the federal government.
If you're a government contractor, supplier, or employer; you may not discriminate for any "accident of birth." Period.
That's where you draw the line.
If you sink your own time, treasure, and talent into a private business, you should have every right to share that enterprise with anyone you choose for any reason.
In this day and age with CEO's like Oprah Winfrey. No.
I don't believe society would allow it to occur. In fact, I believe companies that choose to discriminate, for reasons beyond the employees control, would be marginalized and eventually suffer or fail.
We won't ever know unless you stop the preferential treatment of minorities.