I see antitrust policy as requiring some sort of insight into the pace of particular industries. Tech heavyweights have a tendency to turn over very, very quickly, so antitrust regulations there are not a good thing because they retard progress. Attacking Google, Intel and Microsoft is probably a really bad idea.
Things like cable networks are a lot easier to maintain a competitive advantage in because they require so much capital to create and it's hard to come up with a product that's decisively better. Antitrust regulation of the Comcasts, Time Warners, AT&Ts, etc makes a lot more sense to me.
Overall, this seems like it will be used to attack the tech titans more than anyone else, which makes it a net negative for the country.