This is not an assumption. We've seen it happen - it's called history. You describe its effects in your comment, but fail to identify its cause. Real wages dropped drastically since women entered the (male) workforce in large numbers (obviously, this would have been much harder to hide/fudge with real money, which is also a problem). Since real wages have dropped, it's very difficult (in some cases, nigh on impossible) for wives and mothers to opt out of the so-called workforce, to actually do real women's work such as giving birth and raising families. The government and its sycophants may try and argue against this with deceptive government inflation figures (significantly understated from actual inflation) and cost of goods increasing (this is actually inflation), but the truth is, goods will only be as expensive as people are able to pay. (This is called the free market - if the goods are more expensive than this, manufacturers won't produce them - unless the goods are a type of weapon, but this is another issue).
My point is there is the illusion of choice, but the psychological operation called feminism and subversive government methods to discriminate against traditional families continues to weaken and destroy Western society. As a simple example of the results, the transgender agenda would have been very difficult for the governments to obtain mass acceptance for, with stay-at-home moms teaching their many children traditional values - remember sodomites don't reproduce so can only influence through school/daycare/government propaganda.
