If you're interested, and having trouble finding free versions of the articles I linked (I wanted to provide abstracts as well as merely journal references) I'm happy to provide them. Again, I realize I got excited about a topic near and dear to my grad student heart, and so I thank you for taking the time to humor my unintentional side-track! I certainly hope no one uses my arguments to justify Wrede - I meant to come across as saying "See, it doesn't even matter if paleoindians could have killed off the megafauna - the premise is STILL RACIST AND OFFENSIVE!" But I fear that got a bit lost in my geeky fervor.

Thank you for your thoughtful commentary!