If Donald Trump were a 14 year old child who merely witnessed the atrocities, of course. In my mind collaborators are people who actively help, not the victims who were forced to observe. Inaction is not a crime in a situation when you would get killed for trying to help. You could say that maybe he enjoyed the misery of other Jews or something like that, but those would be speculations, not facts. For all I know he was forced to claim false identity and did what he could to avoid being discovered.

I wouldn't debate the actions of adult / financier Soros, perhaps you are right in that regard.