The Kurds are Muslims too, Sunni Muslims.
If Kurds ever got the upper hand in the middle east they would be no better than any other Muslims who got the upper hand.
What do you base this on? Christians who have fled from ISIS have been receiving shelter by the Kurds. As far as I see the Kurds have been the only ones trying to fight ISIS, and I never heard of them doing any genocide. The Iraqis and Turks on the other hand...