From your comments it appears you continue to believe that our 'built-in' primitive kin-based and reciprocity-based altruism which is likely genetic is somehow an ideal. This runs counter to the vast majority of scientific thought as noted in the quote above. If you want to make this case you need to present a stronger argument then "There is plenty (of unspecified) reasons to think that it is functional" or the entirely unsupported "only religions people need moral guidance".