The Western world has certainly helped fund the rise of radical Islam. The Western world has continually interfered in the Middle-East under many guises, and for many different stated reasons. As Islam is highly centralized in the Middle-East, it is easy to see how the West has funded the rise of radical Islam.
I think that the West has had nothing to do with the rise of radical Islam, and that the radicals have risen by themselves due to hatred provoked within a country. In the West, we just try to live our lives', and the radical terrorists are all about destroying good lives and promoting hate.