Andrew Sullivan is a famous conservative...

...who has left the "movement." He writes about it in his blog in the Atlantic:

I cannot support a movement that claims to believe in limited government but backed an unlimited domestic and foreign policy presidency that assumed illegal, extra-constitutional dictatorial powers until forced by the system to return to the rule of law.

I cannot support a movement that exploded spending and borrowing and blames its successor for the debt.

I cannot support a movement that so abandoned government's minimal and vital role to police markets and address natural disasters that it gave us Katrina and the financial meltdown of 2008.

I cannot support a movement that holds torture as a core value.

I cannot support a movement that holds that purely religious doctrine should govern civil political decisions and that uses the sacredness of religious faith for the pursuit of worldly power.

I cannot support a movement that is deeply homophobic, cynically deploys fear of homosexuals to win votes, and gives off such a racist vibe that its share of the minority vote remains pitiful.

I cannot support a movement which has no real respect for the institutions of government and is prepared to use any tactic and any means to fight political warfare rather than conduct a political conversation.

I cannot support a movement that sees permanent war as compatible with liberal democratic norms and limited government.

I cannot support a movement that criminalizes private behavior in the war on drugs.

I cannot support a movement that would back a vice-presidential candidate manifestly unqualified and duplicitous because of identity politics and electoral cynicism.

I cannot support a movement that regards gay people as threats to their own families.

I cannot support a movement that does not accept evolution as a fact.

I cannot support a movement that sees climate change as a hoax and offers domestic oil exploration as the core plank of an energy policy.

I cannot support a movement that refuses ever to raise taxes, while proposing no meaningful reductions in government spending.

I cannot support a movement that refuses to distance itself from a demagogue like Rush Limbaugh or a nutjob like Glenn Beck.

I cannot support a movement that believes that the United States should be the sole global power, should sustain a permanent war machine to police the entire planet, and sees violence as the core tool for international relations.

Does this make me a "radical leftist" as Michelle Malkin would say? Emphatically not. But it sure disqualifies me from the current American right.

To paraphrase Reagan, I didn't leave the conservative movement. It left me.

And increasingly, I'm not alone.

I couldn't agree more.