I think the issue is that once you have had a referendum with outright dishonest arguments and likely manipulated by foreign states and one side wins by a coupl

I think the issue is that once you have had a referendum with outright dishonest arguments and likely manipulated by foreign states and one side wins by a couple of perentage points, the outcome is ironclad will of the people and even if these dishonest arguments turn out to be to many people's surprise wrong, it will not change what is the will of the people. Vice versa, any notion of asking people what they like about the actual outcome is considered pretty much hostile against democracy. Or something like that. I really can't claim to understand the argument properly.