"...The Comcast merger with Time Warner sucks. It will make thing worse, and probably force some smaller companies out of business..."
Unless the government intervenes, decides that such a merger would add to the tendency towards monopolization of the Internet and Cable TV (and even telephone) wires, and refuse to allow the merger to proceed - which I personally, favor, based upon what I know of the situation so far.
"...If we simply eliminated the power of the government to tell companies what they can, and cannot, do, the merger that scares you would result in a plethora of new competition, lower prices, and better customer service for everyone..."
Yes, that was the argument that John D. Rockefeller and Company used, as well, trying to drum-up public support, to oppose President Theodore Roosevelt's Trust-Busting proposals. Rockefeller lost. So did AT&T, in the 1970s, right before The Big Divestiture.
And, because the Feds busted-up Ma Bell into a bunch of Baby Bells, and sat on 'em for twenty years or more before they let-up on the pressure... AFTER the Diviestiture, TONS of new providers sprang up, and had a shot at real market penetration and growth that would have been impossible if Ma Bell had been left on top of the heap and had The Big Divestiture not materialized.
Why let ComCast or anybody else climb too far up the ladder towards Ma Bell status?
It's called "headin' 'em off at the pass", or crushing the head of the serpent before it grows fangs...
Barring ComCast from merging with Time-Warner would be appropriately proactive in such a context, or so it seems to this amateur observer, at first glance.