And only a very slim majority of them.
True: but in the circumcises that doesn't count for anything, do it?
You can say that there should never even have been a referendum in the first place, which is a perfectly legitimate and valid view.
You can say that it was a spectacularly misjudged gamble on Cameron's part to appease the right-wing-anti-EU side of the Tories, which is a perfectly legitimate and valid view.
You can even take the stance that even if you allow the legitimacy of a referendum in the first place, it should have been decided on the basis of a super-majority as happens in certain votes in certain places - two-thirds, or three quarters, or whatever. Which is a perfectly legitimate and valid view.
It wasn't, though.