Good points (although I think mentioning cryptocurrencies in the same breath is a bit far-fetched).
Also, many Jewish Germans were businessmen, some in leading positions in the financial sector. There were many wealthy Jewish citizens.
What indescribably terrible things happened to these people even before (!) the start of the Second World War in 1939 is well known. Who do you think confiscated the financial resources and valuable belongings of these people who were killed in an indescribably cruel way, the victims of the Holocaust? Directly and unabashedly.