I hate questions like the one posed in the title of the thread. Philosophy is dead and to me is totally meaningless. Atheism is a position, specifically the "off" position on ONE claim. Atheism is not a worldview or a philosophy and our human behaviors as a species, are NOT label dependent.
There is only one NATURAL reality in "morals" which can only be individual and subjective. That is that which seeks benefit and reduces harm. Reality is fluid and ever changing so to attempt to make it stagnant and never moving by saying we need a "system" is absurd.
The reality of nature is that it is BOTH good and bad. It is both constructive and destructive. Evolution does not care how you get to the point of reproduction, it merely has to work, moral or not. Now, having said that, ALL humans can if they seek to CAN lean to the positive side of nature in our ability to be compassionate. But again, neither our ability to be kind or cruel to each other is not, nor has ever been a philosophy or religion or worldview.
There is only one NATURAL reality in "morals" which can only be individual and subjective. That is that which seeks benefit and reduces harm. Reality is fluid and ever changing so to attempt to make it stagnant and never moving by saying we need a "system" is absurd.
The reality of nature is that it is BOTH good and bad. It is both constructive and destructive. Evolution does not care how you get to the point of reproduction, it merely has to work, moral or not. Now, having said that, ALL humans can if they seek to CAN lean to the positive side of nature in our ability to be compassionate. But again, neither our ability to be kind or cruel to each other is not, nor has ever been a philosophy or religion or worldview.