Backwoodsman:

1: "please explain why you believe it would be 'undemocratic' to debate and vote on the terms for Brexit"

It falls within the power of the British Government to set the terms and fully outline their plans for the proposed third runway after at least 12 months of consultation with those who will be responsible for doing the work. The terms and conditions for Brexit on the other hand is a negotiation between two parties and cannot be set by the British Government, and it would be both idiotic and irresponsible of either side in such a negotiation to lay out their stall in public before entering such a negotiation.

2: "your numbers prove precisely what I said - 34% voted to leave, 66% did not vote to leave. You must live in a very warped parallel universe if you genuinely believe that 34 is a greater number than 66. "

Nope it proves that your arithmetic skills are somewhat rusty

17,410,742 out of a total electorate of 46,500,001 works out at 37.44% of the total electorate not 34% as you claim.

If you wish to express things in the way you did then the following is also true:

34.7% of the population voted to remain in the EU - 65.3% did NOT - the actual vote taking the total electorate into account was as follows:

37.4% of the total electorate voted to leave
34.7% of the total electorate voted to remain
27.9% of the electorate could did not vote at all.

So of the 72.2% of the electorate who actually did vote 51.9% voted to leave and 48.1% voted to remain even with your diminished arithmetical skills even you will be able to tell us which is the greater.