My point in sharing is that I believe what is desirable or undesirable is a circumstance of the environment more than a universal morality of good or evil. Perhaps some of the things that preceded us (human sacrifice, slavery, etc), were a necessary precursor for the social organizational structures that benefit us today. Regardless of our judgements. Just as those to necessarily emerge for future adaptation will be undesireable to me. The tree of knowledge requires we judge individually, which is different than collectively, but somehow connected.