[Women] have body parts which complement [which have different functions from him,] and [women] were designed for reproducing offspring. [Along with most other human activities.] Your body produces eggs, monthly, and you menstruate, monthly, and his produces sperm, continually. Your breasts were designed to suckle a baby [and women have] in a womb which he doesn't have.
The two brains differ; the types of thought processes differ; the body structures differ; the emotional reactions differ; the topics of conversation differ....
If the designs differ, why fight the roles and functions, associated with them?
[Minor edits in red].
In the ERSSG with which I identify women are generally smarter and more competent at anything they choose to do than the men. The men are smart and competent as well, the SSG selects for intelligence and competence, but the women seem to be slightly higher on both curves than the men. Evolution selects for smart, competent women because smart, competent women produce smart, competent children of both genders which are valuable assets in the reproduction of the species.
It is true that the women gestate the children. It doesn't seem to slow them down much, as their men pick up the slack. One scientist I knew was in the lab at 10am went to a scheduled medically indicated induction for her second child at 2, and was back in the lab the next day. Something about a grant application that was inconveniently due about the due date of the child. Dad picked up the slack at home with the first child, he took a week vacation (before paternity leaves) in anticipation of extra work at home due to the grant and anticipated birth. He also handled the middle of the night feeding: get up when the baby cried, hang the baby on the teat of the sleeping mom, change the diaper when indicated, and tuck the baby in the crib.
Home chores are usually more equally divided with men taking the more equal half. The men take the more equal hit on accommodating their careers to the needs of the women as well. Only proper as they are the privileged ones. A white male MBA changes jobs and careers like underwear anyway, doing so to stay near the woman's workplace is no problem. The only racism in that statement is in the larger society, the non-white males have more difficulty changing jobs and careers for any reason.