“Thousands of people in Italy have converted to Islam and practice their faith serenely. But there are also thousands of Muslims who have converted to Christianity who are forced to hide their new faith out of fear of being killed by Islamist terrorists.”

Allam describes Islam as a system for taking and holding power. Threat of violence is its enforcement mechanism. Allam also points out: “Beyond … the phenomenon of extremists and Islamist terrorism at the global level,...