I'm in agreement that it's a pretty stupid ass move to get that tattoo - but I think you're being a little unfair here in generalizing this apparent lack of any knowledge of the Holocaust to all Obama supporters (don't fall into the DelDem trap!)

Also her quote was "So I got myself a souvenir, to remind me I can push myself further than I thought I could go." So it's not really intended to be some sort of homage to Obama so much as reminder to herself to push herself beyond what she thinks are her limits. Once again, a pretty stupid ass way to remind yourself of that.