Because the EU has been imposed on us, initially by lies and misrepresentation, then by covert machination and the salami slicing of powers, by treaties to which the electorate were never party, by suppression of discussion, bullying of eurosceptic MPs and reneging disgracefully on promises of referendum – the safety valves are in danger of blowing.
Because we now have to guarantee £8 billion of euro debt. Because we may be liable for the black holes in Euro pensions. Because Lisbon has given the EU ratchet clauses, therefore Cameron cannot prevent further powers going to Brussels. Because he cannot prevent the EU regulating the City, vetting next year's budget, controlling our remaining North Sea oil and gas, imposing EU taxes on top of domestic taxes, and all the other delights they have already tabled or put in the pipeline. Because we need our fishing waters returned to our conservation and control. How many reasons do you want?
If your Great Reform concentrates solely on non-EU immigration and non-EU legislation you are just scratching the surface, and the whole exercise is a rotten sham. It is high time we got out of this protectionist customs union, brought our governance back to Westminster and ploughed our own furrow, as we have done with singular success in the past.