So whatever his private views, he needs to take account of the impatience of Iraqis to see the back of the occupiers. He also needs to be seen to drive a hard bargain.
You might chafe under restrictions and responsibilities that you have for others, and this feeling makes you want to rebel or be free of whatever ties you down.
Migrants to cities are attracted by plentiful jobs, access to hospitals and education, and the ability to escape the boredom of a farmer's agricultural life.
Rather than working out how to skewer Mr Cameron, European leaders would do better thinking what they can offer him that might get him off the hook with his more rabid backbenchers.