Fritz, why am I in no position to stop it? I can see myself laying down in front of the bulldozers already.

Seriously, people need to think what it would be like to actually live in France, day to day, on a normal wage. I've done it, for a few years. It's alright. But it's VERY different. It's not all Peter Mayle, a Year in Provence. Unless you are Peter Mayle and you are in Provence.
The pros: cheap(er) housing, cheaper utility bills, cheaper food, amazing cradle-to-grave health system, freedom to travel, access to sports/cultural activities, and probably many, many other things that I can't remember. I loved it, really.
The cons: insane bureaucracy. Really, really, insane bureaucracy. High tax bills, high social security bills (most Finance industry workers would pay more than 50% of their salary in tax and social charges), an annual "wealth tax", it's difficult to really understand "the system" unless you understand the language, difficulty being accepted unless you learn the language, resentment from the local community if you live there but don't integrate. Spending all your working day in Jersey won't help.
Why do you think there are (or were, pre-credit crunch) so many young French people working in the City, and Jersey for that matter? France has a brain drain, because it is so expensive to live there too. There is no magic answer.
I don't mean to knock the place, but people need to be realistic. Modern communications certainly help, but when I was there, without the internet and satellite TV, you missed the simple things....like Match of the Day! I speak the language fluently, have a deep affection for the place, and understand its systems, which helped. But it's incredible what you miss...
My point is: it's not as simple as saying "I can't afford the rent in St Clement, I'm gonna commute from Normandy". Even with a bit of knowledge and affection for the place, I'd would take a lot to make me commute.
BTW, it rains a lot in Normandy. It keeps the grass green, the cows chewing it, and the camembert delicious. But it don't half rain...