I think you pegged it. This is due to the growing islamization of the UK and France. Folks want to have a place to go to before it gets any worse.
Seems like a few people remember the lessons of European history.
"Folks want to have a place to go to before it gets any worse."
I have been told, by acquaintances that do business in South America, that not exactly a small amount of the run-up in South Florida condos is being driven by a similar phenomenon. Chavez has many with the means to do so, buying themselves a safe place to flee, if and when the need should arise. This is not just Venezuelans, either.
It seems there is an undercurrent of displacement fear, running through a number of communities in the world today. On one level, Israel is surprising as a destination, due to all the negative reportage and apparent terrorism. But, on another level, it's not surprising at all... there are deep emotional and religious motivations at work. In particular, if I were Jewish and a resident of France, I'd be forming an exit strategy myself.