As others have noted, the thesis is not proven--despite some supportive bloviating from the usual Mudcat suspects.

Obama's re-election and the passage of the healthcare reform law are powerful arguments on the other side. And wait til the illegal immigration reform law passes--which will happen soon since intelligent GOP thinkers realize the alternative is political oblivion. This may well result in an intraparty civil war in the GOP.

But the article sounds suspiciously like a the response of a columnist faced with a deadline.

Only kernel of useful truth appears to be the observation that parts of the GOP--probably the majority-- are drifting to the Right--which is not news.