Your "Judaism is Satanism" argument is a well known Logical Fallacy called the "Association Fallacy". In other words you can't impugn an entire group of people based on what only one member believes. ;-)

1. Premise A is a B
2. Premise A is also a C
3. Conclusion Therefore, all Bs are Cs

For example:  

1. Bill Traut is Jewish
2. Bill Traut is into Satan
3. All Jews are into Satan