Of course it was worth fighting for. What was the alternsstive? being taken over by a fascist dictator who would have condemned to the gas chambers the whole of the Jewish population in this country, all those who were known to be homosexual, all the disabled.
And that is just for starters, there would be anyone believed to be against the government. It was East Germany under Russian domination that brought on the system that was the Stasi. Certainly the Russians and their followers had the secret police everywhere and followed and persecuted people who disagreed. But only East germany recruited your best friend, your brother or sister or spouse to spy on you and reveal your most intimate secrets.
West Germany, under, at first the control of the Allies, who now form NATO, had none of this, so we can reasonably say that had Germany won, we would have had the stasi as well.
How anyone can think that anything we have tday is better than what we would have been if we hadn't fought.
For this ex-soldier, I know much has changed over his lifetime and since the war and for some people as they get older change is more and more difficult to accept and when things change and technologies take over that they do not understand, things can seem very frightening.
But I would much, much ,much prefer to live in our current world, despite its many imperfections than live in the country we would live in if we had succumbed to the Nazis.