Is Islam declining and why is this happening?

I wish it were true but I refuse to kid myself. The allah-cult will not be defeated until it's core populations have been subjected to a long term campaign of negative propaganda similar to what destroyed Christianity in most of the West. Intellectual dissent is only the first step of a very high ladder. Most human beings, whether Christian, muslim, or otherwise, are not intellectually functional. Logical critiques bounce right off them. What hits them where they live is ridicule and sexually-suggestive advertising. That's what broke the power of Christianity over the masses, not intellectual attacks.