The problem here is that there actually is a biological disadvantage that women possess in regard to career success. That disadvantage is that on average 100%

The problem here is that there actually is a biological disadvantage that women possess in regard to career success. That disadvantage is that on average 100% of children are born from women. Additionally on average 100% men do not bear children. Due to this statistical anomaly even if only a small percent of women; say 10% decide to have children there will be a measurable disadvantage/bias towards the male gender in the workforce for a simple reason. A person carrying a child even on a most optimistic outlook must spend a least a tiny percent of their time dealing with the fact they are pregnant. This includes hormone levels, energy, medical issues and general physiological inconvenience. Furthermore this inconvenience lasts a minimum of 9 months and reasonably even a year. During this time of less than maximum career effort a man will never suffer such setbacks and is theoretically able to devote nearly 100% of his effort to career advancement. Until we either have artificial wombs or completely change the laws dealing with childbearing to deal with the actual childbearing rather than serve an outdated form of social contract (marriage) there will never be a true resolution.