Thanksgiving, Jefferson and Nihilism

This is a good post I stumbled across on the website of a politically conservative Apple zealot (a rare bird indeed). The post starts off with a screed inspired by an email about Thanksgiving being a celebration of genocide. Then (and this is why I posted it) he branches off into a tangent about jokes about Jefferson and Sally Hemings. The fact that the jokes exist is not troubling to me; I don't think that the topic is (or should be) off limits. The problem is that the jokes are on their way to becoming the main thing we (that is, our culture) remember about Jefferson. That's no good at all.