I thought it takes a man and a woman to make a child. In addition, in many countries, both the man and woman can take leave when they have a child.
These sorta points greatly weaken your argument. You using child care as an alternative explanation towards why woman may make less is likely a symptom of the bias women face in the job market.
There are alot of people who are pissed off about the current system here. Makes sense, since these would be the people who are willing to push through the growing pains of the fediverse to remove themselves from corporate centralized sites.
For example, I'm not necessarily a communist, since I am not convinced it's the best alternative to our version of capitalism in America; but I will agree with the communists when they say we need to replace our broken system with something better.
It feels a but ridiculous that you are using "less work hours due to pregnancy and childcare" as your primary explanation for why women make less over multi-decades long career.
Women go on pregnancy leave for months. How can this explain less pay for years of working?