So you're characterizing everyone who voted to leave based on a distorted statement of one person the BBC pulled out. He in fact did not say that, quoted no less, sentence at all! Find the clip, the full clip, and watch it. He said he was shocked that they won, AND didn't expect Cameron to resign, and so is worried about that. It's quite understandable to be worried about big changes regardless of wanting them or not. He has neither said it was a protest vote or anything like that, nor that he regrets it.