Why Greek, Roman and Norse mythologies are overused, where others rarely get used?
Egyptian is pretty well-known but underrepresented in popular media.
There’s a lot of weird Talmudic stuff about angels.
I think it’s often a western thing.
I would like to see more Native American mythology.
Because the west, which has been heavily influenced by these cultures, controls most of the media you consume.
I’d say it’s mostly racism and that many other polytheistic religions are still practiced. That’s a political can of worms that western studios likely don’t want to deal with.