[pushpop]

That is literally how democracy is supposed to work. You have regular(ish) elections to appoint your "representatives" in parliament (representatives in scare quotes because they seldom represent the people).

Even the 2016 EU referendum wasn't the first we've had. As the voting populous grows old, new voters come of age, and the relationship with our EU partners change, it makes total sense to revisit past decisions.

Nothing in democracy should be closed to re-evaluation for all time in the future just because some people made a vote once.