Noam Chomsky said once in lecture:
Social Security is actually in pretty good shape despite what everybody screams about. But if you can defund it, it won't be in good shape. And there is a standard technique of privatization, namely defund what you want to privatize. Like when Thatcher wanted to defund the railroads, first thing to do is defund them, then they don't work and people get angry and they want a change. You say okay, privatize them and then they get worse.
Among various government programs (American and British, since Chomsky implies both) that are less public and more private than they were, was the road to their privatization started with defunding measures? If not, what motivated their privatization? In either case, are those programs less functional than before?
Note: I don't think this question is too broad. I think showing some examples and counter-examples and expert opinion (from not Chomsky and non-politicians) would be sufficient. Though social security is mentioned specifically by Chomsky, I'd like if answers focus on other programs.