Totally agree.

Personally, I tend to conflate several similar terms: religion, belief system, mental model, mythology, philosophy. They are all just sets of claims or heuristics that people believe, or at least adopt for their usefulness.

I think the well-being of people in the future will depend on us being able to mostly unify around a small handful of core beliefs or myths. It's an idea I exlpore in more detail here: https://medium.com/@nebulasaurus/will-humans-ever-settle-on-one-religion-4e50c81b1d96