I agree with you, and I don't think that's the assertion that Harari makes in his book. He first widens the definition of religion to include other belief systems such as money, commercial organisations, economic systems, and polytheistic religions, and acknowledges that many of these aren't directly bound to any sense of morality (which isn't to say they're immoral either).
That's fair. I have not fully digested Sapiens yet, and was arguing against the smaller point of clear belief communities versus engagement in the abstract mental models we call society writ large :)
