You want me to tell you why Google won't do anything, because Google doesn't give a crap about what manufacturers do as long as they keep installing Android on as many phones as possible and in return they get more advertising dollars.
> You want me to tell you why Google won't do anything, because Google doesn't give a crap about what manufacturers do as long as they keep installing Android on as many phones as possible
Google could allow controlling firewall on Android (and getting root access). The only reason they don't do it is because then users will be able to block tracking and advertisement.
If it's GMS Certified, sure.
It's possible (common even) for some shady OEMs to install Google Play Store, despite not being GMS certified. Asking them to prevent that is a lot like demanding a stop to all software piracy.
And why exactly is that bad?