I totally concur that the idealized firm would be able to actually sit in the space that you describe, namely, providing a better more coherent, more integrated service at a more equitable price point across the range of services
However, that’s not the world we live in and the reality is that existing monopolies don’t remain entrenched accidentally. They remain entrenched because they use state power via the law to entrenche their immoral activities.
In the face of that, you actually have to be - not just passive - because you will be faced with active attack.
So seizing really does a certain point mean at the detriment to existing monopoly power, and more or less whatever that takes to fight
However, that’s not the world we live in and the reality is that existing monopolies don’t remain entrenched accidentally. They remain entrenched because they use state power via the law to entrenche their immoral activities.
In the face of that, you actually have to be - not just passive - because you will be faced with active attack.
So seizing really does a certain point mean at the detriment to existing monopoly power, and more or less whatever that takes to fight