Indulging Hypocrisy

It seems to me that there is a huge gulf between the radical right, who truly believe the anti-all-government crap that seems the lifeblood of contemporary right-wing rhetoric, and the mainstream right, who enjoy the same rhetoric, while not actually believing it.  They actually believe in libraries, schools, medicare, social security, etc. But the radical right is so energetic and passionate... here's the question: why do moderates let them get away it, why do they pretend to agree?

On the left, there doesn't seem to be at all this kind of schism. You rarely hear for the outright abolishment of business. And if you did, the rest of the left wouldn't dream of pretending to agree.

I tend to think this is historical. Communism as a politically correct philosophy died a long time ago. Total free marketism is alive and well, despite routinely demonstrating massive failings. Reasonable people understand this, and advocate a mixed economy. So again, why does the right allow radical idiocy to invade their rhetoric?

I'm reminded of the radio right, in which half-truths are routinely bandied about, with a sort of wink-and-nod - we don't really think that (or do we)? It's a comfort with factual relativism that seems to baffle the left.