Hitler's Sweater

There's a study back in the 19 nineties by a social psychologist, paul rosen. They asked people if they would consider wearing hitlers sweater. And and they almost always said no. It was, i this idea that this object, this sweater, is contaminated in a way that cannot be a punished away or cleansed away. But still, i wouldn't want to put it on. Why? I have a lot of nippicky questions about that.