Well, at some point, if the US govt. will not stop Achmed, then it will fall to the good citizens of the US to stop Achmed. And at that point, things WILL have changed, I assure you.
And Achmed will have been stopped, and all/many/most of his buddies/lookalikes/co-religionists will be EAGER to distance themselves from the bad guys. Note how they rollover so quickly when caught.
We aren't dealing with the most brave, committed folks, here. I was always taught that suicide was an act of cowardice, and I still believe it, more than ever. Remember, these guys are basically the cousin's of Saddam's brave troopers, who surrendered in mass, to CNN photographers.
Sorry if it sounds like I'm full of false bravado, about a potentially dangerous foe. I'll grant the danger. Otherwise, these folks' real specialty is killing women, children and civilians. They've never put up a decent fight, against armed soldiers.