Going to be contrarian.
Why not build your own hardware and run your own software on it, instead of screaming at clouds of big tech.
There is Fairphone as an example so it is possible to build/buy hardware directly.
replies(2):
Haven't looked at this in depth, but designing and manufacturing a phone with a similar miniaturization level and performance to commercial models is a huge electronics/firmware/design engineering challenge. Additionally, often the datasheets for processors, etc. are difficult to obtain and/or under NDA.
Nothing a group of determined engineers with the funding and connections couldn't achieve, but it's no easy task. Fairphone required a few million $ to develop the first model.
Either way, developing software is hard enough - having to build hardware too moves the project toward "pipe dream" territory IMO.