GMG and I have talked about this option in the past. It has a lot independence from the rest of the UK.
It is an option for those with a British passport to live or to just make it your tax home.
A British passport may be easier than you think and they most likely will go through a violent revolution in the next few years as the natives are restless. “Stammer” regret is huge.
I don’t want to leave Canada but sometimes there are no other good options.

Isle of Man