I think you're interleaving two separate changes. One is the mid-20th century feminist fight for women to be allowed to work (in the West, anyway), and the other is the fact that wages haven't kept up with cost of living increases since about the Reagan era. Capitalists forcing everyone to work full-time jobs just to scrape by was certainly enabled by the success of feminist labor movements, but you're drawing a false equivalence between the feminist goal of "if they'd like to, women should be allowed to perform any job" and the capitalist goal of "we can make it impossible for families to get by without all adults being worked to the bone, that will increase our labor pool". The early feminists wanted to be able to choose to provide for themselves, maybe even provide for a stay-at-home husband. What you're saying sounds a lot like "the only good feminists are housewives".