I know he's made a complete twat of himself with his dubiously-sourced definition - but do be honest the argument is like 2 bald men fighting over a comb. I think it's completely irrelevant in the context of the referendum debate.The whole nation, country, nation state argument goes round in circles because there's no agreed defintion. By HB's own dubious definition there are several European countries that would not pass the nation state test.
For me the issue of self-determination goes beyond that - it's about a group of people deciding how they will pool their sovereignty. In some ways this referendum does provide some (but not complete) choice around the pooling of sovereignty.