ALONG with a billion Muslims across the globe, I turn to Mecca in Saudi Arabia every day to say my prayers. But when I visit the holy cities of Mecca and Medina, the resting place of the Prophet Muhammad, I am forced to leave overwhelmed with anguish at the power of extremism running amok in Islam’s birthplace. Non-Muslims are forbidden to enter this part of the kingdom, so there is no international scrutiny of the ideas and practices that affect the 13 million Muslims who visit each year.

Last week, Saudi Arabia donated $100 million to the United Nations to fund a counterterrorism agency. This was a welcome contribution, but last year, Saudi Arabia rejected a rotating seat on the United Nations Security Council. This half-in, half-out posture of the Saudi kingdom is a reflection of its inner paralysis in dealing with Sunni Islamist radicalism: It wants to stop violence, but will not address the Salafism that helps justify it.

Let’s be clear: Al Qaeda, the Islamic State in Iraq and Syria, Boko Haram, the Shabab and others are all violent Sunni Salafi groupings. For five decades, Saudi Arabia has been the official sponsor of Sunni Salafism across the globe.

Most Sunni Muslims around the world, approximately 90 percent of the Muslim population, are not Salafis. Salafism is seen as too rigid, too literalist, too detached from mainstream Islam. While Shiite and other denominations account for 10 percent of the total, Salafi adherents and other fundamentalists represent 3 percent of the world’s Muslims.