>Turns out Google killing Android privacy was completely useless as a way to prevent people from being hacked, but they might use this type of stuff to justify even more closing of supposedly "free" paltforms.

If you're talking about the sideloading restrictions those were intended to stop social engineering and scams, not from getting hacked via 0days.

>Likewise, using privacy messengers like Signal is also useless if they can just take control of your entire device anytime they want.

Source? play services is privileged but not that privileged.