By the way, the other day I was considering Frank's mantra, "Reality is what it is" and was struck by how it reminded me of the absolutism...
As I'm sure you know, JL, Frank fully acknowledges that this is an empty tautology which says nothing of substance. As I see it, Frank uses it as merely a rhetorical device, to implicitly contrast what reality is
with what it is not.
He seems rather skeptical that "reality" is even a legitimate topic of (for) discussion. It seems to me that one of his main implicit points is along the lines of: "Reality is what it is, not
what(ever) you think, say, argue, or pretend it is.
In short, I don't think he intends to take any kind of "absolutist" stand about reality.