well, England would become a sovereign nation if it voted out — because the Scots would ask for a new referendum and leave the UK. The Welsh would follow and NI would be split between a large number of people who don’t want a border with the Republic of Ireland
No they won’t. They’ve had a referendum and they don’t have a mandate, or the legal right to call for another one for many years to come. It wouldn’t make sense for Scotland to leave the UK to rejoin the EU. Over 70% of Scotland’s ‘external’ trade is with the rUK and less than 18% of it is with the EU, it would make no sense whatsoever to leave the UK over the EU. As for NI, well, that’s up to them. The idea that there would be border controls is scaremongering nonsense though. The CTA and free trade with Ireland long predates the EU and it is not in Ireland’s or the UK’s interests to see this stopped, and we are also Ireland’s most important trading partner. If pushed too far, Ireland would be the next to leave the EU.