That the European Union has no further historic purpose is an understanding whose time has come. Germany is reunited - which was the primary objective of the immediate post-War original institutions - and, more importantly, no Europeans are going to permit the use of their terrain as battle fields again.
The European Projecteers are engaged in a wholly different and now collapsing plan. Where 'plan' is the operative word - they want a centrally planned federal state, redistributive and 'fair' with all the disastrous incompetencies that brought down the last attempt, under realised socialism, to be resolved by informational and technological innovation. None of which has anything to do with the unification of Germany except insofar as unification brought a definitive end to the failed attempt in the East.
When Nigel Lawson acknowledges that whatever European unity might have been it is now utterly inappropriate for the United Kingdom to subject itself to its present and future intentions he does not even bring into the argument the sheer unpleasantness of some of its Member States. Current and developing unpleasantness, that is, never mind their pasts.
Italy's new status as a presidential dictatorship is a malignant sore on the face of a democratic Europe. Its democratic political system has collapsed under the assault of an authoritarian statist egomaniac who still believes; whose age and acculturation, coupled with obdurate persistence in ideological and ethical wrongdoing has brought corruption of the soul. The United Kingdom cannot continue in any kind of political association with a Europe accepting Member-States like Italy.