I agree that we have to accept a few RINOs. For instance, Susan Collins and Olympia Snowe may be the best we can do in Maine. My problem is with the truly treasonous RINOs, like Lincoln Chaffee, and with their habit of trying to spread their influence where they're not wanted or needed.
Why on earth did we get Specter again, when Pennsylvania will just as easily elect a good conservative? It elected Rick Santorum, after all, although he may have damaged himself by agreeing to back Specter. Why didn't the RNC support Bill Simon when he had a shot at the governorship, which he lost by only a small margin even though he got no funding? What about Brett Schundler?
In other words, RINOs have a place in the cracks and crevices of the party, but we don't need them coming along with their big tent and trying to impose it nation-wide. That is a losing game, and it really infuriates the base.
I think in the coming decades, the 'Rats will join the Greens, and become an insignificant ultra-leftist fringe group and the GOP will be centrist to liberal.
People like us will go in two directions. Some of us will become Libertarians and many more will be part of an emerging strict-constructionist Conservative party.