The government is the representative force of the people of The United States of America, and it has every right to get involved on their behalf. Corporations are not regents - they have no divine right to prevent competition and to manipulate the markets to keep us from choosing competitors. Corporations themselves are in fact creations of government, chartered by state governments to serve the interests of the people in exchange for certain human-like rights. Comcast and other cable operators have created a "can't win" economic scenario for cord-cutters, making it highly unattractive to unbundle (relatively) high-performance Internet from cable services.
Cable TV has been given far too broad leeway by the Federal Communications Commission by being allowed to treat the Internet as an "Information Service" rather than what the Internet really is by design - a "common carrier." Perhaps in the early days of the Internet this made sense, since the only widespread common carriers, the phone companies,were even more anti-competitive and antediluvian in their land-line Internet consumer services. But now we have the same scenario essentially - a vested interest doing its very best to keep the Internet from evolving at a pace that will make competitive services for Americans more accessible. Instead, billions go into lobbying and political campaigns to force up the prices of media and Internet access through artificial scarcity of bandwidth and choice. The real question of interference is why Comcast or any other company of its kind should have any right to interfere with the functions of a citizens' government.
In a real free market, we would have several Internet service providers without cable interests attached to them providing gigabit-scaled Internet access for the cost a today's few megabits. No cable company or phone company was even contemplating doing this until +Google Fiber
forced the issue. That, in my mind, is real capitalism - government-regulated creative destruction that serves the greatest good for the greatest number of people, not the ones who happen to be on top at any given point in time.