Earlier quoted context omitted.
It just means it's now harder for families to make it on a single income that used to be the responsibility of the father. This drives wages lower as we're seeing and makes it harder on everyone.
Logically speaking, it doesn't make any sense. It should be easier to start families because families earn twice as much. Practically speaking, people will spend their money on limited resources like land and basically lose out on most of the gains. That's the primary way "housing as an investment" earns money, by extorting the wages of future workers. If there are more workers (women and men) then you get to earn ev…
The other issue is that "women entering the workforce" is not really an accurate description of what is going on. Women have been entering the formal workforce. This means that family now need to pay for what was once done for free by the wife. The most significant expense here is childcare (the cost of which is often cited as a major barrier to women "entering" the workforce); however there are all sorts of little expenses that could be avoid at the cost of additional time, so not heaving an unpaid homemaker increases your living costs in a bunch of little ways.