I think that some, but not all, Brexit voters don’t think they were / are wrong. They firmly believe that Brexit is the right decision for them.
Brexit won’t suit everyone, but it will benefit some. Both leave and remain have lost all credibility. Leave have lost credibility by making overly optimistic promises which they knew were false, and remain by trying to scare voters. Both approaches are infantile, but I expected nothing more from our incompetency sodden MPs and ministers.
Now that both side have shown what they are made of, in terms of orchestrating our withdrawal from the EU, we the public have more clarity regarding our future outside the EU. I wouldn’t object to a second referendum. I think that would turn up Remain, but devision in the country will last a long time.