See, you've got the same problem going on - you choose an argument based on articles of faith, not reality.

You argue that the left "typically" blames the West for Islamofascism. More accurately, the left is typically aware of the connections between the west and the Islamofascists - years of support to the Taliban (not to mention Saddam),
years of support to repressive Arab regimes. This is not the same as "blaming." Do we bear some responsibility? Of course. Total responsibility? No. Your article of faith is "the idiotarians blame America" but it is more accurate to say that the left is willing to confront America's partial responsibility for the state of things. To deny that history is to deny reality.

Your second article of faith is that Islamofascism can be isolated and destroyed. Let's assume that you're correct that it is "inherently evil." I'll buy that. But what is this "Islamofascism"? And how can it be totally destroyed? Was it the Taliban? Now that they're gone, is it gone? Will it be gone if we kill Bin Laden? Or his "senior officials"? Suppose you nuked everyone in Afghanistan, Iraq, Syria and Iran? Would it be gone then? How will you know when it's gone? What IS it? Have we been doing the right things to stop it? I don't know. Maybe what we're doing is fostering it. We coddled it for years, and we're still coddling it (see: Saudi Arabia),
so how do we stop? Do we have to bomb everybody? Everywhere?

"Screw these silly sophist hairsplitters," you say. "It's evil and it must be destroyed." Good luck. Call me when you're done.