He seems to make some interesting observations.
I wonder if he ever explores the underlying reason for the different emphasis and interpretation of the categories of morals?
My observation is that the reason conservatives have failed to conserve anything, especially in the realm of morality, is because they have adopted the same presuppositions or first principles as the progressives.
That makes conserving anything irrational, as the progressives are the ones following the presuppositions to the logical conclusions.
There is no rational floor or foundation to base a system of morality on so long as people continue to believe - deeply, reflexively, habitually and unconsciously - that we live in a dead and unconscious universe where everything that happens is either mechanically-caused or 'randomly' undirected - and 'just happened'; a universe which is going nowhere of relevance to humans, and has no meaning of relevance to humans; in which we know nothing and cannot really communicate with anybody or anything...
Progressive culture/politics is the logical conclusion of a materialistic (in the philosophical sense) secular (non Christian) society.
*The italicized portion is a turn of phrase lifted from a blogger I read