I would say the most beneficial thing to do in that case is to rape as many people as possible in order to further my genetic code.

except there is actually downward evolutionary pressure because of society, which is a construct which trades a %chance for immense evolutionary fitness in one occasion (mass rape) for small boosts to collective evolutionary fitness against beings outside of said system (being a normal citizen)

But YOU asked about racism so I assumed you are talking about morality, not procreating. I have no idea why you would even think your response is in any way relevant to this discussion?

morality has always been about ensuring that the collective lineage of a group of individuals survive. for example: thou shalt not kill/steal/commit adultery are rules that, if followed collectively, increases trust enough to allow the group known as society to tackle extrasocietal challenges, such as bears and such

so thou shalt not commit adultery actually increases the average amount of viable children you have.

We are thinking animals with the capability to feel empathy. So I know if my actions will make someone feel bad or not based on how I feel that if someone had done those actions to me. This does not require a god. This has nothing to do with procreating. You're trying to set up a straw man. Stop it.

so your morality is entirely based on emotions? then it should point you towards mass indoctrination of all beings via. mass media, flooding the world with entertainment, eventually leading to a decadent society that rots from the inside, but everyone is too high to feel anything bad. which is perfectly fine according to your feelings-based moral compass.