Really? Lots of things have survived that long.
Some religions disavow others, so some of them must be errors, no?
Robbery/murder/unprovoked aggression?
We sure we want to consider every recurring instinctual behavior "essential" just because it's old?
Many "societies as a whole" have also collapsed in that 2500 years, too, so would you even want to conclude it's working that well?
Only if you think the purpose of a religion is to be the truth.
Really? Lots of things have survived that long.
Some religions disavow others, so some of them must be errors, no?
Robbery/murder/unprovoked aggression?
We sure we want to consider every recurring instinctual behavior "essential" just because it's old?
Many "societies as a whole" have also collapsed in that 2500 years, too, so would you even want to conclude it's working that well?