I don’t get why people obsess over the phones. Nobody here is trying to argue Apple has a monopoly on the phone market, that is very obviously not the case (although Apple very much contains a market leader position).
The argument is very simple: due to the dominant position on the overall phone market, Apple uses this power to mess with another market: the mobile app market. And here it is obvious how Apple is issuing bullying tactics to maintain its dominance (Apple TV vs. Netflix, Apple Music vs. Spotify, Apple Pay/iAP vs literally anything).
Wether the US courts come to a similar conclusion as the EU legislators remains to be seen, but there is a precedent
The argument is very simple: due to the dominant position on the overall phone market, Apple uses this power to mess with another market: the mobile app market. And here it is obvious how Apple is issuing bullying tactics to maintain its dominance (Apple TV vs. Netflix, Apple Music vs. Spotify, Apple Pay/iAP vs literally anything).
Wether the US courts come to a similar conclusion as the EU legislators remains to be seen, but there is a precedent