Bashing the president in fine. If conservatism means anything it SHOULD mean skepticism toward centralized federal power (Republican or Democrat). The problem with Rush, Boortz, and Hannity (especially Hannity) is that they too often gave Bush a free ride as he pushed through the most massive increase in big government in decades. In other words, they held Bush to one standand and Clinton/Obama to another and, for this reason, have lost much of their credibility. For this reason, the bashing right now (though justified) looks more than a tad selective and opportunistic.
There was resistence in talk radio land about the Harriet Meyers nomination, the Dubai ports deal (although Rush took the contrary position, and I wondered where the outrage was when we first outsourced our port security to foreign powers under Bill Clinton), and the horrible bailout deal of 2008.
You may be a little unfair to Neal Boortz, as he opposed much of the Bush agenda except for the WOT.