In a video posted online on August 20, 2014, an ISIS commander explains that they offer the Yazidis a chance to convert to Islam before killing them. “The Islamic State does its utmost for the repentance of any infidel – Yazidi, Crusader [i.e., Christian], or Jewish,” the commander claims. The video shows a scene of mass conversion, with a hall full of Yazidi men reciting the two shahadas.
Truth is, whether those captured by ISIS has converted or not, they have killed them. So conversion has not helped. In addition, they execute a lot of Muslims for the most trivial “deviance” from ISIS laws.