I live a relatively privileged life and mingle with many cultivated people.

Colour me astounded.

If we find ourselves unable to live up to your exclusive and cultured standards of diversity and tolerance, is it too much to hope that you'll be spending more time with those who do?

It's certainly too much to hope that you might understand that one of hallmarks of privilege is taking secret - and sometimes not so secret - pride in transgressive and inappropriate behaviour.