Earlier quoted context omitted.
They won't, though. The EU elites want to discourage other countries from leaving. If they compromise then others will follow in the UK's path in order to extract concessions.
The main problem is that the British don't even know what to ask for. When examined closely, there really isn't anything actually that wrong about the EU. They could've gotten a lot more in the recent negotiations but nobody knows what that should be. The only specific grievance is EU migration and that just happens to be one of the four fundamental principles.
The EU's sheer brutality towards Greece is one of the reasons I abstained. They didn't have a democratic mandate to do that and the institution itself is being gradually changed in order to remove democratic oversight (that's one of the reasons they could be so fucking brutal). More real power exists in the ECB and EU commission now and the parliament is more and more toothless. That's wrong on multiple levels.
I'm pretty sure the British outside of the cities are rationally voting to reduce competition in the labour market. Just ask the "in" campaign:
http://www.telegraph.co.uk/news/newstopics/eureferendum/1218...
If the EU keeps preaching austerity, labor market suppression and other neoliberal ideas I expect it to dissolve in a decade or two.