The reporter Micha Glenny said that Yugoslavia would collapse and was criticised for being Micha Gloomy, but he knew the country well, so was speaking from an informed position, unlike his friends. Otherwise known as the right guess... with any binary choice you have a 50:50 chance of being right 
As with all other areas of life the outcome of Brexit is uncertain. Only history will be able to analyse it, explain it, etc.
All the blathering, on both sides, is just hot air. Some of it seems to be simply a determined effort to be scared/angry/defensive/offensive. I don't understand why anyone would waste their time getting emotionally wound up when there are actions that can be taken.
Yes, get up, go protest. Have your say, be heard, make any difference you can. That's what the democratic process is for, after all! But all the posting of vitriol, here, facebook and anywhere else, does is heighten negative emotions... no solution for anyone!
I do, as Kaija seems to insist of Leavers but not Remainers, accept a democratic decision with dignity... even if I disagree and am plotting useful, effective protests!