Everyone I know who voted leave isn't changing their mind. I'm not sure where this disinformation is coming from
Well not from the polls, for sure, which have pretty consistently shown almost no change in people's views. It's all just part of the drip, drip attempt to slur the leave vote by some remainders' (and I think it probably is only quite a small proportion) like the OP - who try to say leave voters are stupid or uneducated or poor (or very rich and don't care about the less well off, depending on your take) or old, insular, racist, xenephobic, duped, taken in by Farage and Johnson, and so on and so on.
People who think like that need to get a grip and spend some time looking at the many studies of how people voted, and they will soon see that this view just doesn't stand up to the facts. (You would have hoped the fact that the size of the leave vote was 37% of the electorate would have given just the tiniest hint, but hey ho).