That is as ridiculous as saying Nintendo has a monopoly on the Nintendo platform.
Nintendo sells single purpose games consoles. Apple sells general-purpose pocket computers. The two are not the same.
As mentioned, the economics of the Game console market are fundamentally different to those of the cellphone market, and therefore not comparable.
This is nonsensical. Car companies have been doing the same for decades.
Cars are perfectly brand interchangeable - they use the same fuel, tyres, roads etc. Apple's cellphones and computers by virtue of proprietary operating systems and bundled applications are not. Apple's entire business model is built upon ensuring their products are
not brand interchangeable with those of other companies.
As I will keep pointing out
30% is the industry standard.
As been pointed out by other all this would do would be to turn the iOS market into the same kind of garbage fire Cesspool of a train wreck that the Android market is because quality control is nonexistent.
What the rest of the industry does isn't the point, Apple is being judged based on Apple's behaviour in isolation. 30% isn't the "standard", most online stores (except games consoles, which aren't representative) have moved to much lower standards.
Apple's appstores are already garbagefire cesspools, if you open your eyes to see - they're replete with scam apps, scam subscriptions services & intellectual property theft. Try listening to developers, rather than the professional sycophants in the will-say-anything-for-access Apple-centric media.
Preventing malicious apps should be done at the operating system level - by restricting and user-alerting system functionality that can be used maliciously, not at the appstore level by just pretending a malicious app can't get through app review.
There is no relationship whatsoever between Apple being the only appstore on iOS, and user security. If Epic had an appstore on iOS, Epic could just as easily ensure apps sold on their store were legitimate.
And that's what many of these antitrust cases are going to come down to - iOS is a market, and within that market, there is no legitimate reason for Apple to prevent other companies from competing with it for
any user-facing service or application. We're seeing the first cracks in the dam for this already - Apple put in user selectable default browsers and email clients, despite the arguments of past anticompetitive monopolists that "Browsers are an essential integral component of the Operating System". There's no reason to argue that an App Store App or an eBook App, or a Music Purchasing App is any different.