"women in the kitchen" was considered perfectly natural in Europe/america culture some time ago, but when women could choose, they mostly chose not to be in kitchen. That's a quite strong argument that women in other cultures will do the same, if they can.

You need to go back and edit your comment. You mistakenly said billions of people.

You clearly meant billions of men. The idea that the women of the world are crying out to be restricted from opportunity, to be rendered a second class status in society, and that it should all be enforced by cultural or religious traditions and authorities through the implied threat of violence, or often actual violence... yeah that's nonsense.

Well most of those cultures you just said are not objectively worse also have the death penalty, so I'm not sure where you're going with this. This sort of moral relativism is not really helpful to anyone or any society. Enforced gender roles are morally objectionable because they are not compatible with justice, period.

There's a difference between saying a culture is bad because they eat an animal you think it's wrong to eat and that they mistreat an entire sex and if you don't see that, you need to work on your moral system some more.