This is a clear indication of how miserably democracy is failing at every level.
Really? I'd suggest it's doing precisely the opposite, and I'm one who is fundamentally against some of the very undemocratic, anachronistic principles at the heart of the UK constitution. Starting with the Houses of Lords and Windsor.
Recent events are showing how one megalomaniac leader is being held accountable to the HoC rather than just being able to shoehorn through an extremely difficult, complex process of negotiation because it suits his ego to do so. Had this process not taken place, a no-deal Brexit would have been significantly more likely, and the country would have suffered vastly as a result.
In terms of democracy I didn't want to see the US gun bill blocked by senate either, as this was a result I'd have liked to see, but no one can deny this was another example of democracy in action. Yes, even when it doesn't deliver the results I want. Brexit is a shining example of a divisive policy imposed on the public by the will of a divisive and divided party. No one involved in this whole process has given one shiny shit about the mess that would ensure or what that meant for the longterm future of this country.
Shouting 'YOU ARE UNDEMOCRATIC!' when you don't get the results you want only shows the rest of us a person who doesn't understand how democracy operates (or, if you're a politician, someone who does understand it and is choosing to be deliberately disingenuous). No names necessary here; we've all seen who's at it.
Incidentally, nearly half the electorate voted against Brexit. And the results of referenda are advisory only.