Do atheists fake egalitarianism?

[Angrboda]

Lets assume for a moment that egalitarianism is optimal human behavior.  Why would it be optimal behavior?  One answer and perhaps the best answer is because genders, ethnicity, and sexual orientations are all actually equivalent.  If this is true it implies the existence of a God because an unconscious nature simply wouldn't care to create them as such. 

Nature doesn't care one way or another. Are you seriously arguing that genders et al. that are deserving of equal treatment cannot evolve naturally. We are evolved to be a social species. We depend upon one another for the benefit of the whole. In that situation it would be reasonable that, regardless of whatever inequalities may exist, by granting everyone equivalent opportunity, we are maximizing the utility of our resources. Your mistake is in presuming that egalitarianism postulates that the different classes are the same, rather than that they should be treated the same. If that is your understanding of what it means to be egalitarian, then no, I'm not egalitarian. I think you have a defective understanding of the word.

egalitarian (comparative more egalitarian, superlative most egalitarian)

     Characterized by social equality and equal rights for all people.

Social equality, not literal equality.