I reckon not. Much as I want to get out of the EU, I would not vote Leave if I thought that, by doing so, we would make it harder for European civilisation to survive. Different though Britain is, in many ways, from its neighbours, it is a part of European civilisation. The wider Anglo civilisation of North America, Australia etc is closer to us, obviously, than, say, Italy or Greece, but that, too, is European in character, though not in geography.