> All of these can be done with a computer.

Can you permanently apply chain3 (FIREWALL_CHAIN_OEM_DENY_3) firewall rules, so that when the device reboots these are still applied? I see no persistence. And if I'm forced to install some crappy app on-the-go, the solution you propose is to always carry a computer with me, right?

> A second phone does the same thing.

So does a Phonograph from 1877, right?

> Whether it's a "hack" is orthogonal to whether you control the device or not.

I didn't object to it being called a hack, I just pointed out how evil and malicious that privilege escalation on my own device is. Google must block it immediately, it endangers the mankind.