The origin of morality

[Neo-Scholastic]

Some sociobiologists contend that the set of behaviors that constitute morality evolved largely because they provided possible survival and/or reproductive benefits

Fail. Having a survival or reproductive benefit does not make something moral, since some behaviours we consider immoral would be evolutionarily advantageous. Attack the neighboring tribe, steal all their women, rape them, and raise the children to be part of your clan. And that's just one example.

You shouldn't drag outdated theories from the dustbin of science to support your argument. Just because it's on the internet and supports your position doesn't make it true.