> Sometimes breaking government monopolies may lead to worse outcomes.

if the gov't monopoly was receiving tax payer subsidy, then breaking it up means the taxpayer gets back the cost of the subsidy, and the service being provided returned to private funding model.

If you only consider the outcome as the cost paid for service by the end user, then this looks bad - after all, cost was raised. But you have to also consider the savings in the subsidy that is no longer paid.

It's not black and white. Personally, i would prefer a model of "user pays", as it aligns incentives the most.