You know what Basil Fawlty said...
... The obstacle as you say is of course the war... But there's strangely no way around history and what those marques still symbolize other than forgetting.
tryant, I want you to know I respect your choices and feelings and don't want to change them.
I only like to show another standpoint:
Looking at my family history up to 3 generations back, it involved some countries around the world.
Mostly fleeing or moving through the cause of history.
There were losses on different sides of parties at war.
If I would reflect that towards car choice, there would be no marque left to choose except, maybe, Tata.
Some non-German chemical and technology driven companies played directly, or indirectly, important roles in Germany from, say 1918-1945.
If you'd take some of these issues into account, you'd be daily making choices what not to buy.
The Germans are aware of their past and generations later, many of them are still taking their historic burden with them.
But they did have allies, but these allies are not affected with the same sentiments.
Or, something completely different, (no, not the larch):
The Dutch committed executions and massacres in the post war period 1945-1949.
But well, that was the time..
It took untill september 2013 for a formal apology...after most of the widows to apologize to have died anyway.
Just want to point out that some bad might not be so bad and some good might not be so good.
Also a lot of words spent to say it's a pity the Mini can not be recommended either.
Great to have challanging questions ;-) .