This is like when the Soviets were fighting the Nazis. I don’t have a dog in this contest.
I agree with you but this is stranger than that. It's more like the Brownshirts fighting the SS. But even that's a bad example. There were clearer differences between the SA and the SS then there are between any two Muslims anywhere.
There's not a dime's worth of difference between any two Muslims in the world. But don't tell them that. Let them slaughter each other. The more the merrier.