> I’m not familiar with any ToS that permits a company to repossess your PC or parts of it.
I would call iCloud locking an embodiment of this. It's probably an unpopular example because people seem to broadly like it, but it does demonstrate the principal that the seller retains full control of the hardware and can "repossess" the device. The original purchaser does not receive a master unlock code.
Even if locking yourself out of your device is "your fault", it doesn't alter the fact that at that point only Apple retains control of the device.
Same with bios locks and management engines on PCs.
The idea that possession = ownership is gone. And we're almost all ok with that especially since it makes us a little safer and more "secure". At least until we can't trust Apple, Intel, etc. anymore.
One could argue that the black market value for your locked phone compared to unlocked phone is a proxy for how much you actually own the phone.