Why should these muzzie countries gang up on ISIS?
You automatically, and perhaps wrongly, assume that they object to and condemn these terrorist action.
If they did, they would have criticized ISIS when the killing started, but they didn’t.
Islam is thicker than common sense.
I think the Muslim countries would object to ISIS taking over their country, choking off their wealth and killing off their government leaders.
Or maybe they have no foresight at all