I kind of knew that you were going to say France. I've lived very rurally in France too and there's nowhere quite like it.
It sounds like you at least live in your own quite independent house so you hopefully haven't made the same terrible mistakes that I did with doormats, shutters and flower pots that I did in the eyes of the neighbours in my flat.
Oh and the paperwork! The CPAM, Ameli, the CAF, les impots, the this, the that.
Like somebody else wrote, family and frienship networks seem to be established practically since childhood and not very open. Also, despite you being married, if your DH is away a lot and you are dealing with tradesmen etc by yourself, let's just say that rural France is very 'traditional.' I'm not saying that they're going to rip you off but I certainly don't enjoy dealing with them. Even professional men like doctors can be quite misogynistic.
Going off topic a tiny bit but apparently 'Les Viols de Mazan' was 'The crime that shocked the whole of France' but hey, I wasn't shocked. There's a darkness in some of these places.
Only you can decide, with your family, what to do but again, like others have said, your children are at ages where their interests are changing fast and the situation may develop as they get older sort of its own accord.
I haven't any real advice but you will be accepted eventually - actually I think you already have been accepted - but you will always be a bit apart. Everybody here calls me by my first name (pronounced a bit off but nevermind) l'anglaise. Always with the qualifying 'l'anglaise.'
Not as bad as a girl called Aoife. 'Whiff l'irlandaise.'