Nigel - I suspect you have vested interests in over complex taxation systems...???
Your suspicions are totally unfounded. I don't believe anyone really gains from overly complex tax systems (except some politicians and accountants)

Do I support the EU bureaucracy as it exists - of course not.
It needs reform - far reaching rational simplification and cost cutting...
Which I would hope to trust a brave and strong UK could actively campaign for from within membership.
Which was tried. I believe there is a limit to how long you should bash your head against a brick wall before deciding to give up and find a way around it.
Even when Cameron said that if we didn't get concessions there was a risk the UK would vote to leave. The EU still wouldn't listen, so here we are.