@Lash,
Lash wrote:I'm wondering if countries (EU or the US for that matter) would just refuse to trade? Or vindictively attach crazy tariffs to British imports.
I don't know about the USA, but as far as it is known, the UK would have in such a case to start negations about all and everything.
The minimum period after a vote to leave would be two years - and (nota bene!!!) during that period the UK still is a member of the EU, has to continue to follow EU treaties and laws, but can't take part in any decision-making. (Something, not much published these days.)
Another thing not mentioned too often is the
European Economic Area (members are the 28 EU member states, as well as three of the four member states of the EFTA (Iceland, Liechtenstein and Norway). Switzerland is a quasi-member due to bilateral agreements with the EU).
Will the UK leave that as well?