Why would you think that all Muslims will unite against the non-Muslim world? Christians could never fully unite against the Ottoman empire even when it was expanding into Europe. The Communists, which is another religion, could not unite behind the USSR with both Tito and Mao going separate ways. The Hindu’s never united to fend of the British. The Muslim world has not been united since the death of Mohammed and I am not sure they were truly united even while he lived.
I said Muslim countries, not each and every single Muslim and we can see it happening even with our called ally Turkey. Them feuding amongst themselves does not mean that both Sunnis and Shiites do not want an Islamic world.
The OIC is talking about starting their own worldwide “human rights”. That will be a huge Sharia push.
The Muslim world has not been united since the death of Mohammed and I am not sure they were truly united even while he lived.What you see as lack of unity is simply vying for power within their own ranks. They are completely united in the belief in a global caliphate, and the belief that non-Muslims are sub-humans deserving only slavery or death.
It's part of the blindness of the "libertarians" (I use quotes because if you're not willing to defend liberty you don't really have it) not to see the threat to Western Freedoms that Islam represents. Just as you evidently (based on your post) don't recognize the threat to your liberty from the communists.
Liberty without the Defense of Liberty isn't Liberty at all, but cringing licentiousness, crawling from pleasure-hole to pleasure-hole hoping the cat doesn't get you before you have all your personal fun.