1. Firstly, as it hasnt been done before no-one knows the actual economic impact in 1, 3,5,10 or 20years of Brexit.....there are no facts to base things on, only projections, many many variables and none of those projections are ever correct......just guesses really.
I'll have a go. Everything will be fine.
https://sputniknews.com/business/201901171071559685-uk-economy-brexit/
With regards to the experts (Mp's, bankers, The IMF, economists, statisticians, actuaries etc etc ) they didnt see the GFC coming did they and that was the biggest of them all.....how **** did they miss that.....so much for expertise and projections!
Whens the next one coming as global debt is now at an all time high?
Over the above time frames both
Italy
https://www.neweurope.eu/article/italy’s-debt-third-largest-world/
and Greece (for example) - does anyone believe its solvent?
will be even more bankrupt than they are now....
https://www.zerohedge.com/news/2018-10-19/ moodys-cuts-italys-debt-rating-one-notch-above-junk
Hows that gonna affect Europe?
How is Europe gonna deal with that....print even more money and pretend everything is Ok?
2. Secondly and very simply not everyone votes with a "will I be better off financially" as their main priority. Some value other issues as being far more important which they're entitled to do when voting.....which is why in Europe many are opposed to the European project and its dominence over their lives. Many voters in those 2 countries above hate Europe and wanna leave too, for many reasons.