@niggy >you'll never get a system without proprietary software unfortunately
Challenge accepted (people kept telling rms that GNU would never be a 100% free software OS, but he did it).

>every component has it
It depends on the competent. Some components don't have a microprocessor and some have only hardware in ROM - of course the amount of hardware that runs proprietary software keeps increasing of course.

>even a basic SSD has a proprietary arm processor running a whole proprietary real-time operating system inside it
I'm well aware, but as long as such SDD doesn't implemented digital handcuffs on the software, it's possible to replace such software with GNU/SDD Control - but the priority of that is pretty low on my list.