Now, at first blush the usual Manospherean reason suggests itself: This proposal unsettles women because they find most men sexually repulsive, even though in monogamous societies where most women have to marry ordinary men and have sexual relationships with their allegedly yucky husbands, they find the experience tolerable and they make a go of it.
It's possible that what he meant was that women shouldn't be allowed to have sex with the men they choose. Instead, they can either be celibate or learn to tolerate sex with men they don't choose. Is this how you interpret what aa said?
He wanted to ban sex outside of marriage. Describing that as "can't have sex with the men you choose" is misleading, because it's such a noncentral example of that. It's literally true (if you choose someone outside of marriage, you're not allowed to have sex with him) but the same could be said for banning sex on public busses (if you choose someone on a public bus, you're not allowed to have sex with him).
Furthermore, I find it hard to accept that "ban sex outside of marriage" is such a bigoted policy that anyone who espouses it should not be allowed here. (And it's not even restricted to women--he just thinks the policy would affect women differently than men.)
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.