In that case they ISIS are pussies (but are they?). Can't even compare to Palestinian boys throwing rocks.
It seems like the organization could attract Psychopaths from around the world. And they were provided with excellent training and other comforts. Amazing, to say the least.
The IDF could've lent a little help too (if they could annihilate them, like you said, which I am sure they can easily do), since ISIS are a threat to the entire world.