I'm afraid that 'democracy' isn't just observing the result of a vote; it also allows for dissent from that result and those who are seeking to overturn the vote have a democratic right to do so. There are people who have been opposing the initial decision to remain in the EU for the past 40+ years and no-one has questioned their right to do so.
When we vote in a General Election we observe the result of the vote in that the party getting the most seats in Parliament becomes the party of government but this does not prevent the other parties seeking to overturn or amend proposed legislation if they believe that it is damaging to the country or to sections of the community that they are responsible for representing. Parliamentary procedures have evolved to allow for opposition and representation of minority views. Opposition is not treasonous; it allows for the views of all the electorate to be represented, not just those of the people who voted for the governing party. Nor does the presence of a party in government prevent parties using the time between GEs in seeking to persuade people that the government is wrong and that they offer better solutions. Democracy is a living, ongoing process.
So, while we have a government which has 'respected' the result of the referendum, members of the sovereign parliament are at liberty to question every aspect of the way that the government implements it and a duty to maintain the sovereignty of parliament. 'The people' are sovereign by way of their representatives in parliament, representatives who have a duty to have regard to the good of the country as a whole; not just the wishes of part of their constituents.
The 'government' is the representative of the Crown in parliament but it is constrained by the exercise of parliament's sovereign power. We fought a Civil War to establish this.
If you think of 'the government' as actually being a monarch who wants to do exactly as they please and parliament as the representative body of the people which is preventing them doing something harmful to the interests of the country does it make it any easier to understand? The result of the Civil war was to curb the arbitrary power of the monarch and to establish that 'the people', through parliament, had a voice in the governing of the country.
At the moment, some of 'the people' seem to think that parliament is no longer the sovereign body in this country and that MPs have to obey them. This is not so. MPs have to have regard to what they say but they also have to have regard to those who don't agree with 'the people'. If it is any other way it would be a complete Revolution and totally destroy the constitution of the UK. And, by God, I fear Revolution far more than I fear Brexit. I want to exercise my democratic right to oppose and to voice my opposition. And no revolution that I've ever studied has allowed that.
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