EU in or out ?

[fazersharp]

to compensate for the EU import duties we will have to pay.

Um that's not right. If we leave the EU it's up to us what import duties we charge for imports into the UK. That's not the problem. The problem is what import duties the EU would charge for exports from the UK to the EU.

Yes if they impose high import duties then we will just match it with our own for them - its a non argument.

the EU is our biggest export market.

Biggest single - may be, but not the biggest in total - you are forgetting the rest of the world.
And don't forget that we are also their biggest export market.

Cameron is not only is fighting to stay in the EU but fighting for his job, there is no way he can stay on as PM after an out vote, and then to preside over a smooth quick transition when he has said it will take 10 years and the sky will fall in.