ISIS isn't a revolutionary force, though. It's explicitly counterrevolutionary, as are all forms of right-wing political Islam. The Kurds have had a successful social revolution that has resulted not in the domination of right-wing political Islam, but instead secular, radically democratic, and participatory democracy. The Arab world has a long history of embracing, at times, both secular and left-wing leaders. The failure of those leaders in the immediate post-colonial period is what has allowed right-wing political Islam to fill the vacuum in the region, but that is by no means a permanent shift. Once revolutions get set in motion, they logically move from the right to the left, assuming they're not halted by counterrevolution (the areas controlled by ISIS and the military dictatorship in Egypt) or attacked and destroyed by outside forces.
The Middle East needs its own period of Jacobinism before anything like secular democratic politics can become the norm there. It hasn't had that, and as such, the forces that have thus far contended for power have been secular authoritarians and religious lunatics.
https://libcom.org/news/rojava-people%E2%80%99s-war-not-class-war-25122014Just an article on the supposed "social revolution" in Kurdistan