All told, Muslims make up more then a billion of the world's population. But they are far from being a monolithic group, being broken up as much by their own loyalty to their countries as they are by the differences in their interpretations of Islam or indeed allegedly by the degree of commitment to the faith. They certainly do not make up one cohesive Islamic civilisation which can pose a meaningful threat to other civilisations or indeed anyone. They are, after all, too busy fighting and undermining one another to be a threat.
Today, there is not a single Muslim nation that can be classified as developed, although a number of them are very wealthy, endowed with natural resources. But almost all are lagging behind in modern knowledge, technological skills and, in many instances, effective government. In fact, a state of near-anarchy prevails in quite a number of countries. By no criteria can any of these countries be classified as developed.