From what I can gather, you are Professor of Philosophy at Stanford. When I use the term "isolationist," I am referring to those archaeologists that inhabit the Anthropology departments of many universities. They are the sort of dusty, sun-scorched cats that got together and decided they needed a "pseudoarchaeology" issue of American Antiquity, for instance, which I mentioned in another thread. [anthropology.msu.edu]
I guess there are indeed sundry ilks of academics, as you say. "Blue sky thinkers"... I could go with that.