America is different, It only has 1-2% of muslim population and the technology to track the movements of terrorists to too big. The problem grows where there is 40% muslim population in cities like Hyderabad and about 97% muslim population in Iraq (note that there is an immense presence of Americans in Iraq too)
So its not that America is great, it is Muslims who are great, they can create terrorism and terrorist attacks where they are many in number.