A (temporary) monopoly is not as bad in something that wouldn't otherwise exist. If Elon Musk concentrated only on cars, or SpaceX had had another couple of launch failures and gone bust, this functionality might be 40 years away.

Not to say you're wrong, we all benefit from competition in the long run. We get it from a level playing field and preventing natural monopolists from locking the gate behind them.

I agree a (temporary) monopoly is totally OK. Normal in fact.

But the parent comment was specifically celebrating a long term, unassailable monopoly.