Start again?

More and more calls for a second referendum on Brexit.  But where does this lead?  Do the losers of such a vote then demand a third referendum, and then a fourth....?  And more to the point, does this set a precedent for the future - every time we get a divisive issue, will there be calls for a "people's vote"?  That's not the way our constitution works - nor should it.  We had a referendum - perhaps unwisely - but we had it, and are now stuck with the result.  Or are we? - to my recollection, it was made clear it was not a binding vote, so I suppose we could ignore it, and pretend it never happened?