I believe that religions share overlapping religious experiences, contextualized by specific theologies, theories, dogmas, and rituals that divide them, and that the "messianic" pull, that is the force that moves a religion forward, is always going to be idealistic, a positive one, and since all humans share the same basic experience of reality, the most basic ideas will usually be communicated within each religion.
None of the surviving world religions today suggest harming other people, because we as a collective know the experience of being hurt, and also the experience of getting along. We know which is more pleasant, and more pragmatic. When I say messianic I don't mean to refer to the messiah. I only use the language of my paradigm. Any concept of an individual being somehow improved or of society being improved in an ethical way and probably also and essentially but not necessarily a spiritual way, I would include this under my label.
I think that this tugging, it's like when you have something heavy that you're pulling, so you tie many strings to it, but it narrows as it gets closer to the end, but as it moves the end gets further away. So even though the ideas aren't specific, they're dancing around a specific end that is always out of reach, like trying to get to Pi. It's irrational. So we get closer and closer with each new generation of mathemeticians and new technology, but it remains somehow elusive. And everybody generally agrees what Pi is now, but that doesn't mean they've actually calculated Pi.
Dauer