Labour are in opposition. They are in no position to make any such demands. Now that we have had a referendum, the Conservative Government can either invoke Article 50 or admit they were only joking and can we stay, pretty please?

Labour have no role in the process. Not even consultative. It hasn't helped that;-
i) Corbyn admitted he was lukewarm on the EU for several reasons. A depth of honesty entirely absent from the rest of the campaign and for which he was duly punished.

ii) Labour suffered electorally for being part of the Tories Remain campaign in Scotland during their independence referendum. So there was tremendous reluctance at many levels to be over-involved this time.

keep to the Fen Causeway