Because some people have decided to take an all-or-nothing approach to "all people are equal". Imagine if during the social justice movement of the mid 20th cen

Because some people have decided to take an all-or-nothing approach to "all people are equal". Imagine if during the social justice movement of the mid 20th century, we saw people saying "actually, there's no such thing as black and white, everybody has the same skin color", in an attempt to show that the races are valued equally as humans. That would be absurd. And yet that's what is now happening with gender.