A long time since anyone posted in this thread, but I'm procrastinating.
I'm thinking about how the/a golem adds to or fits in with the plot/symbolism.....still working on it, though.
Is Bloom not the golem, with Stephen as the rabbi? Correct me if I'm wrong, but the golem is built and then animated by placing a magical scroll (or perhaps "holy" would be more accurate). Bloom is a hollow servant to Stephen, and is given his character and action by Stephen's cons (which are very much "written").