Re: Wow, it's almost...
An individual politician can choose to be bound or not bound by a non-binding referendum.
What they can't do is make it binding on anyone else or binding on parliament, at that time, or on any later parliament. We live in a representative democracy, whether you like it or not.
MPs are not delegates sent to do the bidding of stupid people who happen to be alive now. They have a duty to serve the national interest, and to honour the sacrifices of past generations and the interests of future generations.