It is no coincidence that 15 of the 19 terrorists who perpetrated 9/11 were Saudis. Saudi Arabia is the new Heart of Darkness; in Conrad's day it was the Belgian Congo, replete with Leopold's manifold cruelties and the depridations of little Belgian men enjoying power for the first time in their lives. Now it is the barbaric mediaeval kingdom so avidly supported by Western governments that drives the terrorism that is destroying peace in Europe.
The world is full of billions of juvenile, primitive and excitable peoples who turn out on the streets as easily as buttons for the slightest pretext. In Indonesia and the Philippines it's not Islam, it's ethnic excitability that brings them out on the streets. India has hundreds of millions of Muslims who are no problem. Yet the closer that Muslims are, in geographic terms, to the Heart of Darkness the greater the jihadist problem, the graver the threat to peace. To the west and north of the Saudi kingdom they ferment war and terror in the Maghreb; to the west and south, death and horror in Nigeria; to the east are the breeding and training grounds of Pakistan and Afghanistan, to the north-east the Shia front in the Islamic civil war in which the Wahhabist fanatics seek to destroy their co-religionists. And to the north is the great soft underbelly of Europe, green, fat and fertile lands that the Heart of Darkness covets lustfully, as playground and provider of luxury and diversion.
The world has a Saudi problem, a Wahhabist problem, not a Muslim one. After 9/11 I scorned the septics who called for an end to the problem using thermonuclear devices targeted at Mecca and Medina; now I'm not so sure they were wrong. And with world oil prices at an all time low, it's a solution that would even attract Russian support - and if taking out Saudi oil brings inflation back to Europe, the Chinese will also keep quiet.
Simply, Europe would now be much better off, and have a better prospect for peace, without Saudi Arabia.