Lib Dem Lords Leader Dick Newby threw some serious shade at the Government yesterday in his response to the Prime Minister’s statement on Article 50 being triggered. He went through it and pointed out the many inconsistencies and false promises it contained. It’s a cracker.

Today is for me and my colleagues an extremely sad day. It marks the point at which the UK seeks to distance itself from its nearest neighbours at a time when, in every area of public policy, logic suggests that we should be working more closely together rather than less.

But sadness is a passive emotion, and it is not the only thing that we feel. We feel a sense of anger that the Government are pursuing a brutal Brexit, which will rip us out of the single market and many other European networks from which we benefit so much. We believe that the country will be poorer, less secure and less influential as a result, and we feel that at every ​point, whether it be the calling of the referendum itself or the choices made on how to put its result into effect, the principal motivation in the minds of Ministers has been not what is best for the long-term interests of the country but what is best for the short-term interests of the Conservative Party.

We do not believe that the Government have the faintest clue about how they are going to achieve the goals that they set out in their White Paper last month or the Prime Minister’s Statement today, and we have no confidence in their willingness to give Parliament a proper say either as the negotiations proceed or at their conclusion. We therefore believe that, at the end of the process, only the people should have the final say on whether any deal negotiated by the Government —or no deal—is preferable to ongoing EU membership. We will strain every sinew to ensure that outcome.

In her Statement today, the Prime Minister makes a number of rather extraordinary claims. She says that she is going to build on existing workers’ rights rather than diminish them. Can the Leader of the House give just one example, or even a clue, of what that might mean and how it might be achieved? Can she also take this opportunity to repudiate the proposal by a number of leading Brexiters in recent days that the working time directive be either watered down or repealed altogether?

The Prime Minister says that the world needs the liberal democratic values of Europe more than ever. Far be it from me to claim any knowledge of liberal democratic values, but can the Leader explain how leaving the EU can do anything other than reduce Europe’s ability to protect those values on the international stage?

The Prime Minister says that she will strengthen the union of the nations which comprise the United Kingdom. Given that to date the effect of the Brexit vote is to threaten the union at every point, what form do the Government expect this strengthening to take?

She says that membership of the single market will be jettisoned because it would be incompatible with the expressed will of the British people. Given that this proposition was not on the ballot paper, that it is the opposite of what was said in the Conservative Party manifesto, that many leading Brexit supporters left open or actually supported the continuation of our single market membership, and that all subsequent polling shows overwhelming support for our continued membership, on what basis is she making that assertion?

She says that Europe has a responsibility to stand up for free trade. Does she not think that the EU will find that a bit rich, coming from this country at the point when we are leaving the single market and customs union?

She says that she wants to be a committed partner of the EU, but when we are walking away from the EU because of the belief that membership of it is damaging to the country’s interests, what can commitment mean other than a shrunken and grudging relationship?

Moreover, does the Leader of the House accept that when the Prime Minister says that when she sits round the negotiating table, she will represent every person in the UK, she is mistaken? She has chosen to promote an extreme version of Brexit and one which is ​completely at odds with her own views of less than a year ago. In doing so, she has chosen not to speak for the many millions who voted to remain in the EU and the single market, and she certainly does not represent them or me or my colleagues on these Benches.

The Prime Minister claims that Brexit will make us stronger, fairer and better, but it will not. The Government’s approach will make us poorer, less generous and diminished as a nation. It is perfectly legitimate for the country to go down such a route, but it did not do so on 23 June last year, and the people should have the final say on whether this is the fate they really want.