OP - I know it may seem awfully formal to send an email, but I get this feeling that when it comes to how you feel, he's pretty much made up his mind, being a good wife you'd never argue against him would you. I mean he's afforded you all these opportunities you've had, how can you complain when he's the one out grafting. (I'm not being serious about those comments, but he does appear to have a warped view of where your preference comes into anything.)
I don't know what kind of things you enjoy, but an idea could be a family journal, where you keep track of everything you are up to. Everything you do in the day time. Then say he's got a flight somewhere, hand him the journal and say this is why I love it here. This is what we do as a family, this is what I enjoy, this it what we all enjoy.
You can add in Hubby taken boys to this place, get a little print of an OS map and stick it in. So he's included as well.
Maybe I'm being selfish asserting you should put your foot down, but I've lived too long in a marriage where Hubby grew up with the man in charge. So it's pretty much mirrored in his adult life. I don't get asked I get told. Thus it's come to a head and he can live his dream life by himself with hopefully shared custody.
In a way you can look back dreamily to the 1950's when men were the head, the women did as they were told. But also bear in mind, more for him than you, community life was different. You had neighbourhoods and villages where everyone knew each other, you were never really alone.
If you move to the SW you've got to go through it all again, laying down the foundations. You might find that they're not your kind of people at all, that you have very little in common, that there's very little to do that you enjoy. You are important.