Gonnagle,
Great post. Was thinking about this earlier; Scotland has as much land as England but a relatively tiny population. In contrast, England had to leave the EU, because it is full - we need to have authority over immigration law (even if for some time immigration stays high).
So please don't say we have made a terrible decision. It may be right for you to leave the UK, but I don't think it would be right to leave on that basis.
Edit: On the other hand, I guess Scotland has a lot less inhabitable land than England, so maybe its population is high in that respect.