The free movement of capital and business made possible by European integration and the Euro has generated a wave of radical restructuring of industry and services across Europe. It is logical enough. Why should such things be duplicated when the degree of protection given by the existence of individual currencies is gone and the single market complete?
At the present time most EU countries have some involvement in the production of most goods and services across Europe, but there is no reason why this should be the case under the a single currency. The strongest will survive, the weakest will go to the wall.
From the logic of the EU (even more the Euro-zone) a multiplicity of suppliers makes no sense. The battles for control between European telecommunications companies are a case in point. This may be good news for big corporations who want to maximise their profits but bad news for the working class in terms of wage levels, job losses, and more unemployment. We do not oppose restructuring in principle, of course, but in practice restructuring under capitalism means attacks on the working class - something we are opposed to in principle.
The introduction of the Euro creates a Europe which meets the needs of the bosses and European and trans-national capital. It will set these interests firmly before social or environmental considerations. It builds a Europe on the principle of international competitiveness within the global economy. It is an expressions at the European level of the processes of globalisation on a world scale.
Ford or Honda of Europe are still American or Japanese companies, not British, German or Spanish. Courtaulds may employ more workers abroad than in Britain but it is still a British company. This does not mean however that these companies always operate according to national or state interests, on the contrary they adopt some global imperatives. They will shift production around the globe, closing down plant in Europe and North America and shifting tens of thousands of jobs to Asia.