Many have adapted. When you talk about Islam, you’re talking about approximately a quarter of the world’s population. In light of more than a billion people, the acts of terror and riots are relatively small and usually linked to politics. I think that linkage is the problem.
It took only a few thousand Bolsheviks utterly to transform the Russian Empire. The jihadists are just as bloody-minded and, furthermore, are backed by a lot of oil money.
Muslims have a big problem. The urbanized population of Iran has already become more secular less than thirty years after the Revolution. Other countries will likely follow said trend.