Sadly I think H'nH has hit the nail very firmly on the head.
If there IS a direct , actual threat they'll move - as we did in the Falklands and Kuwait to some extent - but otherwise it's personal concerns first - around my watering hole its "the kids earn a £100 k a year and can't afford a house", Doctors appointments (lack of), operations (delays thereto), anti-social behaviour (lots of), lack of police doing anything..................