Here's another good piece by Scott Cleland, this one on government broadband overbuilds. Scott is right about this: "Governments do not 'compete' with companies. Governments tax, limit, police and judge companies."
It is possible there are some places and in some cases where, in light of the economics, no private sector firm will step forward to provide broadband service. But absent those cases, there is no justification for government to "compete" with the private firms. As the saying goes, inevitably, there won't be a "level playing field."
Read Scott's piece for his argument as to why this is so.