@blatham,
I'll add one other very important element to what I've just written.
This zest towards de-legitimizing and dis-empowering the Democratic party in the US corresponds very closely with the goals of highly reactionary forces in America. The Koch brothers, Scaife, the Bradleys, the Coors, the De Vos family, etc - the heirs to Bircherism - are quite in agreement with Norquist's vision. If the elected government can be obstructed to the point where it is no longer effective in acting as a stop or a curb to non-elected power centers (which are the very wealthy individuals and their organizations, corporations, churches, etc) then those entities can work their will, for their own perceived interests, and can effectively disregard the will of the electorate, thus making democracy a sham.
The reason I came to despise Scalia was because of his increasing self-certainty that he was right and that opinions differing from his were wrong. He became increasingly absolutist in this regard. And it is not difficult to see this as a personal characteristic in the man. When he suggested in his notable interview a few years ago, the Constitution "may have been" divinely inspired, he was leaning on a theocratic absolutism. When he claimed that the document must be used only literally, he was leaning on absolutism.
There's no evidence I know of that the Koch boys are religious at all. But their obsolutism and self-certainty grant them (in their minds) the same sort of legitimacy to dominate others' notions and wishes.