Earlier quoted context omitted.
... after creating monopolies in the first place
The logic there is astounding. The government broke up AT&T into a bunch of little companies. These companies then merged their way back into a handful of large corporations and are still trying to merge even more. Did the government force them to join up together? Of course not. The government is actively discouraging a lot of these mergers, i.e. the government is forcing there to be a more competitive marketplace.
After establishing it as a federal monopoly in 1934. (And in TFA, we're talking British Telecom.)
Similarly, there are a lot of municipal agreements in the US where one company gets the exclusive right to handle local phone or cable service within a city or region. More companies or smaller companies doesn't mean any benefit for consumers when they still just end up choosing between "the phone company" and "the cable company" as designated by law.