I'm not clear there is an unregulated digital services industry; airline tickets, movie tickets, Broadway show tickets are all examples of digital services in existence today. Digital services regulation should (imo) amount to the same regulation as physical goods. And it's only my opinion, that more regulation impedes innovation.
Whether we want to define smartphones vs cell phones as being fundamental to the economy I guess is another judgement call.
When the goods transactioned are digital is mostly not regulated. Tech companies can write whatever they want. The examples you gave the goods aren’t digital but analog. In fact, the examples you gave Apple does not impose a 30% revenue share. Say on analog books does not, yet already does on digital books even if the content is exactly the same, heck if it’s not created or distributed by them.
In an analog world you own a copy of book (not it’s content), in the digital space you license a copy of the book. You could make a copy of a game for safe keeping ... or sell your license now you cannot ... the tech industry unilaterally removed that.
The concept of ownership in digital space is being removed by the tech industry for the same price or more with cheaper production and distribution costs ... systematically. They figured that if they can’t 100% protect their ownship over content, there is always a slight chance of being hacked, much like the analogs, well they can simply remove all ownership but theirs. Customer own a license, a code, a piece of paper if you will.
The App Store is the next iteration of this, now they do it between themselves. You build an App but you are not allowed to sell in your App your digital goods if not through a third party. Today only within the confounds of Smartphones mainly, but if not stopped it will spread like wildfire soon.
I would say the regulation over access, distribution, production and sale of digital goods should be regulated depending on the nature of the service or good as close to analogs as possible.
For exactly the same service why does FB not pay a dime to the App Store yet say a Digital Book Store is forced to? I bet FB consumes far far more resources of the App Store than does a third party digital book store by several orders of magnitude. Apple states it’s about fair policy ... yet it theirs. Well their and everyone policies should be regulated regarding digital goods just like analog goods ... they aren’t. What they do in analog world is impossible due to regulation, either local or international.
The answer is simple. The game is not about the value of the App Store service to suppliers or customers. It’s about power. FB as more power over iOS users than does a little digital book store, so much so that it can hurt Apple iOS business it blocked by them. Apple does not like that so it’s lobbying against Facebook. They have access to usage statistics of any app in iOS.
Things get complicated when people loose their common sense. That is when regulation gets in. I believe that certain tech companies lost theirs somewhere with their success. This licensing scheme as been stretched to a point that is fundamentally legalize “stealing” wrapped up in licensing agreements, policies and distorted concepts of privacy and security.
Apple solution for Privacy and Security for both customers and supplier is to give up ownership of any digital good and the right to access data. It’s nonsensical. Because the moment you own nothing, or share ownership of something, you have no longer power. Without power, there no Security, and from that is extremely easy to loose Privacy entirely ... all you need is a shift in Policy. There is a reason why there is still no nation wide GDPR like policy ... a change of CEO or board. There is a reason why EU regulators are being under attack by people that think like you ... with a lot more to gain that you probably.
Today tech companies have more power than entire Govs and are totally “infiltrated” in the governamental aparathos. There is no democracy without the ability for people to own things, digital or otherwise.