Thinking of Anne Frank as though she would have been the daughter of John Gotti while Hitler was attempting to clear Germany of organized crime then makes that situation easier to understand.
With many million of participant (including the Frank family) in organized crime in Germany then there would obviously be many casualty during any battle against organized crime. Either the battle would have been fought or the territory would have been conceded to organized crime.
There was no alternative method for arresting and detaining many million of participant in organized crime. Those were people who would pollute with drug what would be sold at the market because they were following the order given by their leader of organized crime[1]. Those were people who would be part of organized crime until their death.
Family of member of La Cosa Nostra often claims their relative to be just businessmen. Was John Gotti was just a businessman? The Frank family of organized crime was not just businessmen.
[1]What is not kosher might yet be polluted with drug in many area.
/Nathan
