Essentially the thing that was undemocratic was the poorly-conceived referendum in the first place, as well as the dirtiest pair of campaigns I have ever, ever known.
I do not know if there was/still is something similar in the UK, but in the 1980s - 1990s we had certain mail-order schemes in France where you would accept a rather nice-looking initial shipment for the equivalent of £1 (e.g. a model locomotive, or a bottle of wine), not realising you'd been signing up to something that would have been excellent Monty Python material, whereby you'd be essentially forced to accept (and pay for) endless shipments.
The repeated mantra that the "2016 result" must be respected makes me think of this.
- the British people order a product in June 2016
- the following day, the promised product is delivered: Britain will leave the EU! Wow, that was easy and fast!
- then the troubles begin. The product does not work properly. Several vendors offer various aftersale solutions.
- an aftersale solution is found, which involves fitting humongously complicated bits and parts to the product
- many people think "but this is not what I ordered in 2016, can I get a new look at the options?"
- other people want to send the product back and chalk the cost up to experience
- At the store's Board of directors meeting, no-one takes a decision
- but the new vendor-in-chief and his assistants keep insisting that the product WAS ordered in 2016 and that NO further change is possible