If he were Jewish, the monster would most likely be a golem made from lumps of clay and dirt, formed into man-like figures and brought to life to do whatever deeds it's creator asked which are most likely nefarious in nature.
Or he could just be a monster assembled from the parts of executed murderers; ethnicity unknown. Who knows... Whichever the case, you know the foul beast is an abomination
I'm so glad I did read it. It's normal that Hollywood can't capture an entire book, when they make a movie. But the Frankenstein movies are so far off the book, it's like a totally different story.