I have predicted a “remain” vote since day one, the British people have to much of an ingrained “subject” mentality to go against the wishes of authority, any with a genetic predisposition for freedom and self determination left for the colonies centuries ago. I believed they would make some noise, but in the end as soon as the globalists started parading the litany of supposed economic horror’s that would occur if Britain left the UK, they would all come crawling back like good little subjects and end up voting “remain” by a comfortable margin. If the latest polls are any indication, that’s exactly how it appears to be shaking out.
Even if that were true (which it isn't), what 'authority' did you have in mind? However you define it, 'authority' in the UK is as deeply split on this issue as the rest of the country. Witness a referendum campaign which has often seemed like an internal family feud between members of the ruling party.
Problem is that the Germans and French will want to make the UK suffer if it votes for BREXIT. The last thing they want is for the EU to break apart (as might happen if some of the less enthusiastic members see Britain doing well outside the EU). Given that about 44% of UK exports go to the EU it would hit the British economy hard if they were unable to cut a favourable trading deal with the EU.