I honestly don't think, in the long run, that he has actually acted in Britain's best interests.
As has been said by many on this forum, some with wide experience of commerce and business, we need the EU more than it needs us.
We cannot influence things by relegating ourselves to the sidelines.
This is just tribalism, at the heart of so many of the UK's inefficiencies (the MoD, the NHS, the coalition itself) and is something EU members must rose above if it is to survive.
If Germany and France can co-operate, with agreed differences, it should not be beyond the cornerstone of diplomacy and compromise, Britain, to do the same.