Adam Smith died a few centuries ago lads The west has moved on from specialisation to highly complex diversification in a global supply chain operation of goods, services and capital.
In fact in the mobile phone of every member on here there is most likely a part created or designed in the UK. Complex products don't come from singular countries quite like wine does.
The German trade surplus calculation is distorted by the stage in the global supply chain which they sit, rather than specialisation itself. The value added doesn't filter down to ordinary people very well but is mainly redistributed back out across the world to shareholders and non-manufacturing aspects of a business model.
For example, if it takes 3 widgets to make a car, 1 widget from Slovakia costing €1000, 1 widget from Italy costing €1000 and 1 widget from Brazil costing €1000 that is an import cost calculated at €3000. The car plant, based in Germany, sticks the 3 widgets together and sends it to Russia for €10000. The trade surplus or value added in Germany is then calculated at €7000. Does this money filter down into the local economy of the car plant? Little. The shareholders from Japan, Dubai, Australia all around the world take their cut. The hedge funds from the UK, the pension funds from the Netherlands. Then the company takes its value added money and spends it in Russia on advertising, on opening a salesroom, providing car finance. The tentacles of globalisation are too complex for the old fashioned business view of seeing everything in terms of national borders. It might have been that way before Margaret Thatcher and co around the world abolished capital controls but money is now recycled in myriad ways creating a system that keeps fuelling itself.
Dyson are moving 2 people to Singapore. They haven't manufactured in the UK for over a decade and I might be wrong but I don't think has even paid corporation tax here for years. The role the UK plays in the globalised economic process of a Dyson product is the value added by the 3000 strong engineering design plant, the investments made there and the gainful employment there, that is what impacts the local economy.
Any left wing government worth its salt would indirectly make trading with its economy harder by passing progressive laws and taxes that improve human rights, workers rights, animal rights and the enviornment.
Trade deals aren't so much about swapping bananas for pottery in the Adam Smith conception of it anymore. It is far more complex now. "Good" trade deals are about the facilitation of more transactions given that governments rightly or wrongly judge an economy by a value of all its transactions.