BJ's mom is Jewish. The series uses it for comedic/dramatic effect as well. Meeting Frau Engel on the train in 1 is such a tense yet comedic experience because of BJ's Jewishness.
Wolfenstein 1 still had that sketchy ass relationship between a brain damaged guy and the nurse who changed his adult diapers for two decades while he was almost comatose. I checked out when those two had a sex scene.