There is something wrong with being forced to live any kind of life you don't want. If you don't want to be a housewife then being forced to be one if you have a child is objectively awful. Japanese women have spoken, they'd rather work than have children if it means being chained to a home. Honestly even Japanese men are spoken. The gender expectations around having children aren't pleasing for them either. No one likes being forced into a life they don't want. If all it takes to avoid that is not having kids it appears many in Japan can overcome biological drives and do that.