if they can retaing the economic adavantages of being French by staying in the EU.
In France, they are the second richest region, close to Germany but with support of the central French state. Alone, they are the poorer cousin of the Rhine valley as Basel, Baden-Würtenberg et al. are even wealthier...
Who needs France when you can get the same things from the EU?
The question also is: what State will let go more easily. Not France, for sure. In the long run, we're all dead. John Maynard Keynes
That is an issue of democracy, too. Those whom the Gods wish to destroy They first make mad. -- Euripides