Israel has been training and arming ISIS. ISIS doesn't fear or attack Israel because they are the puppet masters along with Turkish and Saudi support.
An Israeli general was captured by the Iraqi government and confessed he was training and giving tactical support to ISIS heads. Israel wants the Golan heights and can't seize it properly with Assad in power. They also don't want an opposing pipeline running from Iran to Syria.
ISIS wont bite the hand that feeds it.
Why does the Prophet Muhammed look like a child rapist?
Are you sure that isn't one of the caliphs after Mohammed? He doesn't look like Mohammed. He looks more like Uthman or Ali.