"That means that there MUST be public schools, and there MUST be medical insurance programs or safety nets for people to have the number of children they have to have for the population to remain stable and to grow."
Uhhh, no. Most of the large families I'm familiar with home educate their children. While I'd agree that Government schools are necessary, that's in the same way that I'd argue that prisons and lunatic asylums are necessary. Not desirable, but a fact of life.
As for medical insurance, we're already 3/4 the way to socialized medicine. We just aren't seeing any of the alleged benefits.
As for safety nets, the fact that we are paying the level of taxes we do and have so little to show for it speaks volumes about why socialism does not work.
We have plenty to show for it.
We have life expectancies practically in our 80s, versus in the 50s last century before these programs began.
We have older people still fully independent, because of Social Security payments, as opposed to being thrown on the mercy of their children, and a tremendous burden to their children too, as back then.
We have not had a Great Depression, nor anything approximating it, in the 70 years since we regulated banking and the stock market, vice the cycle of severe depressions every 25-30 years in the 19th Century, culminating in the Great Depression.
Most large families in the USA are Hispanic, and use the public schools.
People live longer, are healthier, and as a whole, the country is better educated than before we did these things.