I come at it from a completely different angle to Teribus in that I was a Remainer - however on his last point as far as I am concerned he is correct. The US and EU are not comparable as the US is an established nation state (best term I could come up with) whilst the EU is a large group of established nation states working together sacrificing some measure of sovereignty in the process. Sure the US is a single market created from smaller constituent parts but in that sense it is already comparable to the UK - or Italy or Germany etc. All created within the last few hundred years from smaller kingdoms, principalties, duchies etc. I imagine even the bulk of Remainers wouldn't want to see a single European super state comparable to the US!