Is it really an ideology just to be independent and align yourself with other independent countries that have dealings with the EU?
Critics often talk about not having a plan but, beyond negotiating a mutually beneficial free trade deal, surely it is as simple as my paragraph above.
The Common Market was an excellent idea for stimulation of trade between European countries but as it morphed in to the EEC and then the EU it became more and more unnecessarily political, making laws and rules well beyong a purely trade remit. Maybe that is what many citizens of countries on the European mainland want. Our referendum showed that our citizens did not.
The likes of Richard Tice, Steve Baker and even Nigel Farage may want something further than just pure independence to make our of decisions, but I think they are in the minority and do not speak for the Leave voters among the general public.
US and Canada are two independent states in the sense that you talk about them. They are part of a three-way agreement with Mexico which is very lightly worn compared to the EU. Nevertheless, Canadian independence is hugely circumscribed by the fact that it is dependent on US markets for its exports. It has to meet US specs (usually lighter than Canadian ones) both on products and how they are produced if it wants to sell into that market. Its motor industry is functionally integrated into a North American motor industry to which it contributes bits which go back and forth across borders at various stages of manufacture. And while the Bank of Canada sets Canadian interest rates, it usually has to set them just above US rates or capital simply flows out of Canada to the US.
All this not only hugely circumscribes what Canada can do abroad. It also has a profound impact on life in Canada. All this is so, even though Canada is independent or, more properly, sovereign, in the way you want Britain to be. It matters that Canada is sovereign on a whole rack of issues from metric measures through abortion, guns, and health service, to going to war, but economic realities and the economic expectations of most of its people dictate that its freedom of action on a whole range of issues is hugely circumscribed. The Canadians tried to break this continental drift a couple of times -1950's trade diversion back to the UK and Commonwealth; 1980's trade diversion to Europe. The gravitational pull was just too strong, as were the upfront costs of trying.
The UK faces similar realities in its relations with the European Union. Sell into the EU market and you sell on EU terms being the most obvious example. One big difference though is that there is no big North American project. Ten, twenty, thirty years from now, it will look pretty much the same. This cannot be said of the EU, at least not in its aspirations. It wants to be more and is determined to succeed or die trying (my money is on the latter). Either way, however, it is not good news for us to be a part of it.
That's why
a) it's important to have left,
b) much more should have been done to make clear the limits of what leaving could possibly mean, and what remaining was going to entail,
and thus,
c) a complicated, fiddly, half-arsed exit has much to commend it -but, at the time, had no one except a few grown ups to speak for it