You're quoting a sentence that defines anticompetitive practices, not a sentence that defines a monopoly.
Here is a sentence from the same page that defines a monopoly:
Courts do not require a literal monopoly before applying rules for single firm conduct; that term is used as shorthand for a firm with significant and durable market power — that is, the long term ability to raise price or exclude competitors.
the long term ability to raise price or exclude competitors.
Which you seem to take for a granted, but won't provide even a theoretical for how that might have happened here?
You're quoting a sentence that defines anticompetitive practices, not a sentence that defines a monopoly.
Here is a sentence from the same page that defines a monopoly:
Which you seem to take for a granted, but won't provide even a theoretical for how that might have happened here?
Ability means "they can," not "they did."