Apple just kicked Fortnite off the App Store

I don't think this should be regulated at all. Apple should be able to impose their rules in their systems. Let's be clear about this, if people are choosing to buy these black-box closed handheld computing devices, there are consequences that come with that choice.

I don't agree. Millions (maybe even billions) of people user their devices and the country absolutely should regulate their systems. As an extreme example imagine if Apple tomorrow said that all apps have to pay a 95% cut instead of a 30% cut and all customers have to pay $20/month to use Wifi or internet on their iPhone. Obviously this is unlikely to happen but then I would expect the govt. to intervene.

If Apple want to impose rules without any government oversight, they are free to start their own country with their own government and impose their own rules.