...This sounds a little bit like nationalism to me.
So?
The stench nationalism is what I find so distasteful about the leave campaign; it's all (as you said before) "
British Government should have more control of
British borders,
British economy,
British trade agreements,
British laws".
Why
British?
Nationalism: a stone's throw from xenophobia and a short stroll from racism.
Poor maybe, the EU is poorer.
In what way is the EU a poorer democracy? Given the failings of UK democracy, I think leaving the EU would make things worse.
Having said that, I really can't see this in terms of the practicalities; the economy, democracy, immigration; they are all debatable.
The important thing, for me, is whether we are isolationist or inclusive. Encouraging people to identify with larger groups and opposing parochial and nationalistic thinking are aims worth pursuing for their own sake.