If this causes Apple-- and other device manufacturers-- headaches selling in France, then so be it.
Fair is fair. I personally applaud Apple for saying NO to unreasonable search and intrusion as an American citizen in US residence, even though it might likely bite them in the ass and cost them business. I hope the current legal debate works out in favor of privacy and the 4th Amendment in the US. If other countries have different laws, they are certainly entitled to enforce them within their borders. They can start by requiring all smart phones to be government issued Android: open source OS, they can craft and force all of the world's top hardware makers-- save one-- to run their preferred system. No snark intended, I am quite serious.
I'd love to see strong encryption become the norm in the industry-- I'm bothered, but not in fear of terrorism-- however each Nation can do what they want. I'll continue to enjoy being American and prefer living life with my Constitutional rights intact. If I'm killed by Terrorists with an iPhone then fuck those guys and may they roast... but I'm quite certain that I prefer to live out my time without government imposed FUD and nibshit LEOs whining that they cannot do their job without Orwellian access.
Expedient "justice" does not equal higher quality of life.