In mostly-Christian America, a judge in Mississippi was forced to take down a display of the 10 commandments from his chamber wall. As I'm sure you're aware, the "war on Christmas" rages every season over Christian symbols. I've yet to see a Muslim behind any of these protests. You know this. I could go on with many other examples...
Just how far do you think the Islamic extremists would get with their super-spooky Sharia law in America? Regardless of how they tried to do it: through legislation, through some type of stealth campaign, through violence - how much of this tyranny would Americans (Christian/Jewish/secularist/atheist) tolerate? Seriously - I am laughing at the ridiculousness of this as I type. This truly scares you?
Look - I like Glenn Beck, but he's way over the top with his paranoid hype of the "Caliphate" boogeyman. He's using these fear tactics as a cattle prod to direct his listeners to support the military/industrial complex with their tax dollars so they can continue to build planes that never fly, ships that don't sail and other wasteful projects. This has traditionally been the Republican program of "job creation". It has nothing to do with national defense. Just another welfare program that makes the voters feel "safe" from the boogeyman terrorists.
As for world domination, let me ask you this: How many Muslim fundamentalists sit on the board of directors of the Federal Reserve? The IMF? How about the secretive Council on Foreign Relations? If you're not sure about what exactly these organizations do, I suggest you take a break from the fear-mongering hysteria and please look into them. Then, you'll find out who really threatens your freedom and security.
I don't expect a reply, as these facts cannot be argued without degrading into an emotional rant about "the Muslims comin' to kill us." Besides, my position on this issue actually requires reading and research, rather than simply listening to Glenn Beck's latest ghost story.