I would add that a man’s ability to provide is a big factor, and a woman’s ability to nurture children. Of course, society is pretty fucked up socially and mentally at this point to where we have career women who don’t want children and men who are freeloading off women. But if one accepts the biological factors then it comes down to what I previously mentioned. Additionally, some guys feel disturbed by the fact that a woman looks for a good provider. However, it really is a true need for them as the weaker sex. That being said, the other problem is that due to society today, many women expect much more than she would ever need from a man, particularly materially. So yeah that’s where the disposable male idea has come into play. Whereas in the normal biological state a female will accept a male who provides adequately. Keep in mind that these provisions are not limited to material, but also providing emotional support and guidance for the children and family as a whole. There’s just a slew of problems that bugger things up like how females will compete with one another as to who has the latest and greatest. Same for males some ways. Social media has multiplied these issues to an unbearable degree.