I have no concern for ethnic and gender studies departments. Any fool will notice that there are no Japanese or Taiwanese or Orthoxox Jews in these departments. The departments stand for a treadworn ideology not an academic reality. If some job applicant knows about Mary Wollstonecraft or Antonie Lopez de Santa Anna but not Andrew Jackson they won't get a job. Most people in our society, especially those in college who want to live in society after graduation, treat these departments as a farce (or as an historic fart).
The diversity training programs on the other hand are probably harmful. They treat diversity as a political issue and make some kinds of ethnic diversity (Black, Latino, American Indian, women and a few others) as 'precious', fragile, delicate subjects who must be 'respected' (like gang members who demand 'respect'). Most of these people would rather be ignored and allowed to fit in quietly, rather than singled out as 'precious' and fragile. They are Americans, trying to be Americans and automatically worthy of respect.
Back to the main subject. I don't like tolerance, but I don't have an alternative word. Tolerance is very stand-offish, sour... the tolerant person is 'put upon'.
The diversity that I mention in my blog headline as a core value of commerce is the variety of human conditions which interact in trade. Diversity certainly isn't primarily ethnic. Real diversity is more often religious, national, linguistic, social class and cultural. Commerce only requires enough accommodation between diverse people to trade, exchange, collaborate and occasionally live safely nearby each other. That is all. Like New Yorkers who live in the same building and never speak to each other.... there is a great deal of accommodation that requires minimal interaction.
Get with diversity and forget tolerance.