I mean these debates are normally among single people dating. It doesn't really make sense in the context of marriage . And by the time you're married it's pretty much decided that you're one entity. If it's a child support situation, you don't have a choice you got to do whatever the judge says.
In fact, i still remember the origin of this debate was whether you paid for the first date or not.

As a side note this conversation actually meant a lot more from the perspective of white people ,than it did from the perspective of black people. I believe it started as a white convo, and eventually gravitated to the black community.
A lot of black people who are alive today have rose tinted glasses of an era which never really existed. Among Us in particular I don't think we ever had an era where just one person working was the norm. I've spoken to my grandparents and even my great grandparents. Even if Grandpa (or great grandpa) was working in a farm or a factory, grandma still held a job as a seamstress, or shopkeeper, or nanny, or cook or selling pies/produce. Thus is radically different than when white people have this debate about 50/50 because they have a conversation about history where they did have a period of time where one white man could work while the wife stayed at home making babies.