The article to which "Dave the Gnome" posted a link makes our point extremely well.

While we were quite aware of the 4000 years or so of human history in which some groups hated other groups and, in many cases, acted on their hatred, we naively believed that we were seeing a positive change in human behavior, at least in the U. S. Now it has become abundantly clear that the signs of change were a thin veneer covering our real feelings.

Apparently, human nature is what it is and will continue to be this way for the foreseeable future.

Sadly,

Bev and Jerry