You're right, there is no doing business with them. They're taught from the earliest ages of comprehension to lie, cheat, steal, rape, murder, etc...
Palestinian Prime Minister Ismail Haniyeh, right, meets with parliament member Mustafa Barghouti in Gaza City, Monday, June 19, 2006. Days after spiriting suitcases full of cash into the Gaza Strip, the Hamas-led Palestinian government distributed emergency payments of $300 USD (235 euros) on Monday to thousands of desperate civil servants who haven't received salaries in nearly four months. (AP Photo/Petros Karadjias)
I understand the concept of dehumanizing your enemy for battle but in this case the mind doesn't need to stretch too far.
What goes around comes around.
If you act like uncivilized animals, then you will be treated like uncivilized animals.