There was always one good reason for leaving, that is the overarching aim of the EU to form a single state out of all. Those who like to identify first and foremost as Europeans have no qualms about becoming citizens of such a vast and cobbled together country. The influence which was once the UK and much more so older, smaller (much smaller) former Regal states such as Scotland, Wales an even England, will have will be absolutely negligible. Junker has already called for centralized Taxation, in Brussels of course. As for the EU Army, for this you can read an EU Air Force and an EU Navy, Marines etc. There'd be no point in one and not the other. When we've got to that point, its game set and match. You can be certain, if the UK remained in the EU and there was a crisis regarding the Falklands for example, the matter would, in the future, be taken out of the hands of what was the UK and, be dealt with by the appointed members of the EU parliament, likely none from the UK. You can bet your RIAT tickets for the next five years that there would be bugger all resolve to do anything but abandon the Falkland Islanders to their fate. Perhaps half the population of the UK feels no sovereign identity with such because they're too modern and forward in their outlook (musn't wallow in the past etc). I personally have no sense of reassurance about the economic outlook other than my belief that any problems afoot are purely engineered by the EU and the remain campaign. Nobody mentioned concerns about the Northern Ireland Border until after the 2016 referendum, Nicola Sturgeon fought very hard, along with the rest of the SNP to secure Scottish independence in 2014, knowing full well success would have meant leaving the EU and with no currency!
There is one thing, I have come across the net contributions and receipts for individual member states for 2017. Not surprisingly, Germany makes the largest net contribution, we are second, by a bit more than half the German input, next, by a little more than half of our input, is France. There are 10 net contributors, the rest are all net receivers, this in itself is an eye opener. Ireland and Italy make net contributions, the rest are all typical, Netherlands, Denmark, Finland, Sweden etc. But the net receivers include; Belgium, Luxembourg with the biggest recipient of the funders' largesse being Poland! Go on Tusk, put us in our place!!