It's not just that Israel is competing with ISIS in committing crimes against humanity, they are both of the same nature and of the same origin.
Both organizations are:
Radical religious group telling their followers killing innocent people would guarantee them heaven ☑
Commit genocide ☑
Slaughter women and children ☑
Take hostages ☑
Murder reporters ☑
Use internationally banned weapons ☑
Backed by United States ☑
if it walks like a duck quacks like a duck...