Question for remainers- if the shoe was on the other foot, and we’d voted to remain in 2016 would you be saying there should be another vote now as people may not feel the same?!
Well, the two aren't really comparable, because "remain" was a known state, whereas "leave" was not.
If we voted to remain, and something changed that meant that "remain" in 2019 was significantly different than the "remain" that we voted for in 2016, then yes, I think it would be reasonable to have another referendum.
That is the situation here. The "leave" that was voted for (including £££ for the NHS, fantastic trade deals, EU giving us whatever we want etc etc) is not the leave that can be delivered. It is significantly different. So it is reasonable to vote again to see if the public still want to leave given the significant different leave deal that is now on the table.