How do you expect it would work otherwise? Countries with too many people would run out of jobs? Is it population density by land area that determines whether we run out of jobs?
I wonder if wage elasticity is similarly studied. I'd expect that in the short term, more qualified candidates suddenly entering a field (due to institutional barriers being torn down), would drive wages lower. In the long term, things might stabilize towards the previous status quo.
However what is 'short term', and what is 'long term'? This is something I'd love to know if it has been researched, or if we're still floundering for an answer.
How are those two things even closely related? Does the "War on Drugs" have nothing to do with it, something that's part of a pattern of racial persecution and sky-rocketing incarceration rates?
When women entered the workforce they took many of the entry level service positioned filled by black men, so now black men are in jail.
Similarly, if universities want to hire professor's children to be professors, now there are twice as many professor's kids. Every (other) kind of discrimination can be pursued with twice the intensity with women in the workforce.
Of course, women entering the workforce mean that women's work gets taxed, makes billionaires rich, etc. And then of course two-income families can afford to spend more on housing, driving up the cost of housing, they can spend more to educate their kids.
Women entering the workforce has been a huge driver of economic inequality but neither the left nor the right wants to talk about it.