There's a whole lot of shady crap underlying the infrastructure and the hardware that consumers cannot touch, pinephone / librephone or otherwise. It's not designed for consent. At best you can gain ephemeral relief, but even that is illusory, because by simple process of elimination, differential analysis allows fine grained ID and tracking of people even if they don't have accounts, phones, interact with websites, etc.
It's not a shady cabal of lizard people, it's just the grubby natural alignment of interests by a wide ranging set of companies and regulators and groups who allow it to happen without imposing any accountability, and ensuring that the system remains structured such that no effective accountability can be imposed.
Extorting constant streams of data for adtech is too valuable and the entire thing is too complex for silly things like ethics to interfere.
Only when the kill switch is on. I control it.
Also, it's possible to get AweSIM service hiding your data from the mobile operators.
We should be enforcing informed consent regulation of network infrastructure, treating privacy and anonymity as synonymous with liberty and freedom. Allowing the system to operate as it does is a choice; those with lots of money get to make it grow by exploiting a constant invasion of privacy with no concurrent return to the society being exploited.
Phones aren't built to be privacy respecting, and kill switches are a mitigation of a symptom, they don't do anything to address the disease.