Scripps, I see it as an anti-socialist musical hidden beneath a thin veneer of emotional blackmail and disguised as a musical.
Mrs. Johnstone is a woman who needs birth control. Obviously the government has failed her on that. She needs childcare and the government has failed her on that. Apparently she's spending her child subsidy checks on Marilyn Monroe movies.
The government takes great pains to relocate her to a new house where she has every advantage (except a job; none of these new houses can afford a maid). Yet her boys turn out on the wrong side of the law and her girls don't get much needed birth control.
The son she has given away to a capitalist family turns out to be an upstanding citizen who contributes to society.
Lesson: when you don't depend on government handouts, your life will be much better and you won't have to fantasize that your jailed son is like Marilyn Monroe.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.