I think this is spot on. But I also think it is a structural thing: We have always been told "children and women first to the lifeboat, then men". I think this

I think this is spot on. But I also think it is a structural thing: We have always been told "children and women first to the lifeboat, then men". I think this is a bi-product of the spare-the-women culture we are living. Maybe men are more trying to be polite than hostile when they won't let women carry heavy loads?