the_dark_lewd on 26 June 2016
In general, other forms of dogma and tribalism would emerge. Like communism. It's part of human nature.
You need very strict constaints on society to stop these things arising. For one, you need an incredibly individualistic culture.
The best you can do is try and minimize their bad effects. I think most Europeans know vaguely what that looks like. Most of the bad effects of Christianity had been mostly muffled in Europe over the last 100 years.
And then along came Islam...
