Unfortunately for us, Europe can't protect itself, and if they go too far under, it hurts our interests, too. They also won't stay neutral because some of those countries (especially France) are too arrogant to admit that they have ceased to be relevant and have not been anything approaching a superpower for a really long time.
You're right, and I think European governments are fully aware of this. And, it frees them to placate their ever growing Muslim populations; a useless effort to avoid being a terrorist target.