It can be stopped. All they have to do is destroy the computing and internet freedom we all enjoy today. Can't do subversive things like copy a file if they don't let us run our software. Governments around the world are also trying to erode these same freedoms by pushing encryption regulation.
DRM in the browser was step one. No Widevine, or whatever crapware is needed, no Netflix. Next came the limit on higher resolutions. You want Full HD? Stop using a free operating system. You want 4k? Get Internet Explorer, or better yet, get our app on one of the approved operating systems.
The next step is probably to diminish the browser experience even further until enough users have switched to the 'app'. The only reason is control.
It won't drive us away from a personal computer running whatever modern OS we want, but it is slowly creating a majority of people for whom computing exclusively means a managed device with a pre-approved operating system running vetted proprietary applications.
There was a brilliant moment where entertainment was all going to converge. You'd have your PC with terabytes of storage, stick a tuner card and an Ethernet cable in the back, run the sound out to your thousand-watt 20-channel amplifer, and display it all on your 70-inch flat screen. Broadcast TV, Netflix, Disney Plus, etc, would all just be desktop icons, right next to Steam and Excel. We were hurtling down that road in the mid-2000s (remember WinXP Media Centre Edition?) and suddenly it all jumped the track.
Seemed to happen pretty close to when Digital TV stumbled its way into the US market, or roughly the perfect time for it to really take hold (the classic "record a show on VHS" paradigm was suddenly killed off, and the ever-mutating subchannel lineups makes a smarter electronic program guide and recording functionality more appealing). I sort of blame the cable industry-- apparently it was virtually impossible to get a digital-cable-compatible tuner card for many years-- you had to buy from a narrow band of prebuilt PCs with the cards preinstalled, and even now the companies will scream blue murder over having to supply CableCards (if they even do anymore).
The PC is a do-anything device. Eventually, given the media industry's tastes, it will be the 'do anything except watch name-brand entertainment products' device. I don't think they can undermine general-purpose computing as a concept- there's too many other business cases that rely on being able to run random unsigned software or connect to arbitrary weird hardware.
Instead, Disney and Sony will push hard for various consumption-first or -only devices-- smart TVs, consoles, locked down phones/tablets. I'm sort of surprised they aren't already going for the subsidy model-- get a "free" PS5/Xbox 3π/"smart" television if you'll sign up for years of a content subscription service to feed it.
People will end up having both and being annoyed that they can't converge things.
That's one of those "good luck" scenarios. Building your own homebrew computer, or your own OS is a hobby for many. If you push the people behind them, and make a market for them, you'll make them popular.
The internet itself is complex, but not so complex that determined actors cannot build their own mesh networks.
And whilst governments are trying to erode encryption everywhere, it won't work in the end. They may be able to take secure encryption out of the hands of civilians, maybe. But they can't take it from the pirates.
And as for the incoming "no one would be that determined" argument, cracking chips to let consoles play pirated games have existed for a long time, and the average person did actually seek them out... And found them everywhere. If you make people build the infrastructure... They will.
In the context of visual/audio (re: the topic), no. Even disallowing encryption will not save companies from simple steganography.