We should have the ability to run any code we want on hardware we own

> In this context this would mean having the ability and documentation to build or install alternative operating systems on this hardware

It doesn't work. Everything from banks to Netflix and others are slowly edging out anything where they can't fully verify the chain of control to an entity they can have a legal or contractual relationship with. To be clear, this is fundamental, not incidental. You can't run your own operating system because it's not in Netflix's financial interest for you to do so. Or your banks, or your government. They all benefit from you not having control, so you can't.

This is why it's so important to defend the real principles here not just the technical artefacts of them. Netflix shouldn't be able to insist on a particular type of DRM for me to receive their service. Governments shouldn't be able to prevent me from end to end encrypting things. I should be able to opt into all this if I want more security, but it can't be mandatory. However all of these things are not technical, they are principles and rights that we have to argue for.

You could just not watch Netflix. Most of the content is kind of crap anyway, low effort filler. And the streaming services have trouble even licensing third-party content at all unless they have robust copy protection. That may be stupid because it drives more consumers to privacy but copyright holders are free to negotiate any licensing terms they want.