I am not at all convinced of that. The mood seems split but with a distinct majority in favour of remain, as I see it.
according to the latest polls, it seems remain would lead by 54/46 but it is risky, you may not get what you vote for like last time, remain lead vanished shortly before the day. If remain wins the second referendum only by a narrow margin, the problem is not going to go away, millions will want another referendum.
The fact is millions expressed a wish, politicians promised to carry it out but don't know how to beside a hard brexit.
WTO brexit does not carry a known disadvantage because it's untried and untested, no matter how hard you try to convince brexit voters, while the current withdrawal deal has obvious disadvantages compared to current membership.
If you offer a referendum between current deal and remain, remain will win.
If you offer a referendum between current deal and WTO brexit, brexit will win.
If you offer a referendum between current deal and WTO brexit and remain, WTO brexit may wiin and still less than 50%, the result won't put the matter to rest.
If you consider that the UK leaves with WTO brexit and the cost is confirmed as astronomical, the UK will seek to rejoin but then, it will be a very different UK. This time, the problem will be laid to rest.