But if you have another referendum that excludes the possibility of remaining you are immediately excluding the opinions of at least a very large minority, or even a small majority, of the electorate... Suppose the choice was between May's deal and no deal, and the turnout was slashed because millions of disgusted remainers refrained from voting (there's no way I'd vote for either of those and I wouldn't be on my own, would I?) How would any result based on that serve democracy?