(Denny Crane: "Sometimes you can only look for answers from God and failing that... and Fox News".)
Good point. Don't bite the hand that feeds you as the saying goes. This all falls right in line with what i think Sharon's strategic plan of withdrawal was. When attacks are based from this newly given territory, there will be a disproportionate response that will escalate incrementally. By withdrawing from the Gaza Strip, Sharon has gained legitimacy even in the eyes of the Jew hating governments of western europe.