Gender roles are the problem
I constantly see highly qualified women dropping out of the workforce at around 40. As long as women believe that they are ones that mind the house and look after the children, they are the ones that will have to choose between career and family.
If women want both a career and a family, then they will have to start choosing men  that are also willing to have both a career and a family. This means that both partners have to work part-time and both will have to do the housework and raise the children. It also means that good childcare facilities and /or willing & able grandparents are nearby. It also means that the men will have to find employers that are willing to have them work part-time.
Furthermore, said employers will have to be understanding when the man has to bring his daughter to the hospital for an 11am appointment. A lot has to change for men and their employers for partners to share in parental and work responsibilities. This invariably means that the pair will earn less but this a part of the price that will have to be paid.
In short, gender  roles for men especially have to change on the grounds that gender roles have changed.
 well, the heterosexual women will anyway.
 personally, I prefer the term 'gender' for how the sexes may conduct themselves. It is very heavily dependent on time and culture. I prefer the term 'sex' for the biological division. 'Male' & 'Female' denote the sex, 'masculine' and 'feminine' denote the gender.