You're making it sound like the desire to be a Frenchman is an unreasonable requirement for becoming a Frenchman.
> abandon your own language, culture
Thank god nobody is asking this. They're being asked to learn enough French to participate in France. B1 is hard, but it ain't B2, and you'll still barely understand what's going on around you.
> abandon your own language, culture
Thank god nobody is asking this. They're being asked to learn enough French to participate in France. B1 is hard, but it ain't B2, and you'll still barely understand what's going on around you.