I'm afraid that even if they manage to have a second referendum that it will have the same fundamental problem as the first. Basically, that it was asking the people if they wanted to leave the EU but didn't actually lay out a realistic plan. It would've been fine if it had been treated more like a poll and MPs then allocated resources to come up with a realistic plan for Brexit, but instead it was considered binding. It's like there was a vote that we're all going to be healthier. Most people would say, "yes, I'd like to be healthier, of course". But then you present them with a plan for getting there and they say "wait a minute, I don't want to exercise or eat better, I just want to be healthier". Actually, it was probably even dumber than that. More like voting that we're all going to be healthier AND we're going to have ice cream for every meal. It was a stupid meaningless vote. If there's a second referendum, it needs to be be on a specific negotiated plan that includes a legal solution to the Irish border.