I have to say that all the comments I have read in Arabic about the proclamation of the caliphate have been sarcastic and mocking

“People don’t have to like it, but they have to respond to it,” said Shadi Hamid, a fellow at the Brookings Institution, of the group’s declaration of an Islamic state. “Now that there is an actual caliphate with a caliph, a lot of Muslims are going to have to talk about what that means, and there is going to be some sympathy.”  Really? Maybe in Qatari and Saudi royal circles but not outside them.