Morality comes from a commitment to treat other as we wish to be treated, which follows from the realization that none of us is the sole occupant of the universe.
If we are not to abandon values such as peace and equality, or our commitments to science and truth, then we must pry these values away from claims about our psychological makeup that are vulnerable to being proven false.
Equity feminism is a moral doctrine about equal treatment that makes no commitments regarding open empirical issues in psychology or biology.
As many political writers have pointed out, commitment to political equality is not an empirical claim that people are clones.