Generally it's Bayesian. If at this point in the history of civilization statements like 'there are chairs' don't get to count as obviously right, or 'physics be damned, I don't need on stinkin' causes for my volition!' as obviously wrong, then I confess I no longer find it obvious what 'obvious' is even supposed to mean.

I'm not saying Anti-Naturalists and Anti-Realists aren't extremely sophisticated, or in a number of cases well worth reading; sophistication is compatible with obvious wrongness.