``Differences in biology'' are consistently cited as justification for sexist beliefs.
And Darwinian evolution has been cited as justification for letting the poor starve. So what?
The findings of the scientific process are not immune from the bigotries of its practitioners and the era in which they live. Science is a process, not an outcome.
So anyone studying differences between men and women is motivated by a desire to oppress women and maintain the patriarchy?