Government's role in librarian supply

In all the talk about librarian pay equity, diversity, and librarian shortages or the lack thereof, the role state and municipal governments play is rarely, if ever, mentioned. Why?

Isn't it the case that the majority of ALA-accredited library schools are partly funded by states through public universities? Many (most?) librarians are employed by public institutions - public libraries, public universities, public schools. Even allowing for regional differences, one would think the large role governments play in both the supply and demand of librarians would be worth analyzing.

This is just the very germ of a Monday-morning, pre-caffeinated thought. I'm not the one to develop it further, but I'd love to see someone tackle it. (Maybe Michael already wrote about it and I missed that post.)