Cameron's the last person i'd want negotiating for us, if i'm honest. But again all these "who/what do you think" type questions are pointless because the simple answer, both for and against an exit, is that I do not know. I cannot predict what will happen, but just because I or others cannot predict what might happen either beneficially or negatively doesn't mean we should fear remaining in a political union solely on that basis. Things could be great if we stay/go, or things could deteriorate if we stay/go. Truth is nobody knows for sure what will develop , but fear of the 'unknown' should not be a factor in influencing anyone's decision. If we based our choices on that we'd never progress in any aspect of our lives.
The Stronger in Europe campaign likes to claim it can predict the unknown of an exit; it cannot. It can only speculate a worst case scenario which it uses as its argument to remain. The same for the Leave campaign, claiming a doom a gloom outlook in which British sovereignty could be surrendered and the British identity evaporates. Its all speculative. I prefer to look at how the EU behaves NOW, its handling of the debt crisis, Ukraine crisis, refugee and migrant crisis and their subsequent failures and its proposals for the immediate future, and they do not chime with what I want Europe to be nor do I trust those in charge, who are people i've had no say in appointing and neither has anyone else.
Back in the 70's people were told that the EEC/EU would not benefit them, or their children, but it WOULD benefit their children's children. Well i'm in that bracket and I don't see any benefits to Britain remaining in the EU. Which begs the question; who has benefitted from the EU?