What most people are missing is the third option, how Britain can both avoid leaving the EU and staying in the EU: Namely that the EU in it's current form stops

What most people are missing is the third option, how Britain can both avoid leaving the EU and staying in the EU: Namely that the EU in it's current form stops existing before the Brexit can be completed. There are compelling (or at least popular) arguments both from the left and the right against the EU in it's current form, but for some kind of international European organization. It's not too far fetched that (due to various crises like in Greece, the Brexit, etc.) the EU would break apart at some point. In that case, due to necessity and realpolitik, I don't believe it would leave a void, but would be replaced by a leaner organization, more individual multilateral treaties etc., and hopefully something more democratic. And as I said this idea is popular with the left and the right - I believe this restructuring could be positive and utopian, or regressive and apocalyptic (you choose which side is which).