I don’t understand why Google didn’t just made Android closed source. They would’ve made custom roms impossible and therefore more able to control and spy on it’s users. Why did Google made Android open source, while Microsoft’s Windows is still closed source to this day?
Android is effectively closed source anyways. If you use this OS without Google Media Services, you will be effectively locked out of almost any app, system, service unless it works in a browser.
This isn’t even remotely accurate. You can always use degoogled Android. There’s Fdroid for most apps you really need and APK installs for any others
If your use case revolves around a limited amount of apps and features, I can see how that would work. If you travel the world, experiment with new services etc. you might end up that the only way to obtain the required service or information is an app, which mandates GMS, which goes for an absurd amount of programs, and if you don’t have that, that’s it. No access to the service or information in the middle of the road and sometimes nowhere. I used a degoogled system. It is everything, but certainly not everyday usable. As a secondary phone perfectly fine, but not as a primary.
Of course you could start a debate with the developers of why their public or event service relies on Google, but good luck until that is implemented when you are locked out right now.
You just have to commit and be willing to selfhost stuff to replace stuff. If you are unwilling to selfhost then degoogled is harder