DrCaleb DrCaleb:
A lot of people did, until they found out what ISIS was really about. When they tried to leave, they got a bullet in the brain, because that's what ISIS is about.
ISIS wasn't telling them anything that wasn't in the Koran and the Hadiths. If they couldn't figure it out from the news photos of headless corpses and people burning in cages, oh well...
The IQ pool improves a bit in the countries they left.