I would argue that the 1950's and 1960's, which I've heard called a "golden age," was an age where we kept corporations in their place with a 90% corporate tax

I would argue that the 1950's and 1960's, which I've heard called a "golden age," was an age where we kept corporations in their place with a 90% corporate tax rate and we broke any corporation up who had an oversized market share. How is this "close to libertarianism?" If anything that suggests to me that the US was better off when corporations were weak and local, state and the federal government maintained lots of in-house expertise for their functions instead of outsourcing everything to consultants and contractors.