Well, it makes a good story, and I'm not entirely sure Lonnie was wrong. Don't forget my early childhood was in bombed out Brittain, and anti German feeling was rampant. The Germans were rightly demonized through a lot of my childhood. Not really surprising, the damage was everywhere, and people were still acutely mourning people killed in the war, and many were not combatants. Don't forget the Germans had created trouble three times in less than one hundred years before I was born.
So, yes I harbor an understandable suspicion of Germans, and the fact that Trump is half German certainly reinforces it.