Emotive language was inevitably in plentiful supply last week as the Labour Government unveiled a post-Brexit agreement with the European Union, including plans for a youth mobility scheme.

Lamentably, we had words like “surrender” and “betrayal” bandied about and a declaration the “Brexit dream is dead”.

Sadly, however, the Brexit nightmare (we might as well be specific about the type of dream) is very far from over.

And most of the self-harm inflicted by Brexiters on the UK will remain very much in place even if all of what is planned in the agreement between the Labour Government and the EU transpires.

That is not to say there are not very welcome things in the agreement. It is just to highlight the very small scale of the mitigation of the Brexit damage that Labour has decided to pursue and on which it has reached agreement.

Details have still to be worked out on the youth mobility scheme and the plans to reduce some of the friction on trade between the UK and its largest trading partner arising from Brexit.

However, the UK Government has put a figure on the expected economic benefit from the agreement.

It estimates the measures agreed with the EU will boost annual UK gross domestic product by around £9 billion by 2040. This is a fillip of around 0.3%.

The independent Office for Budget Responsibility has calculated the cost........

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