You don't own your PC either. All modern PCs have a Trusted Platform Module that the authorities can and will use to lock down PCs eventually. Multiplayer games are already using hardware attestation on PC for anti-cheat.
I don't run any OS or games that would require such a thing. The two modern AMD cpus do have an fTPM but they are certainly not enabled in my UEFI firmware. My 3 other desktop computers including the one I'm typing to you on have no TPM and indeed this computer doesn't even have an Intel Management Engine (ME). And in my other old intel CPUs that do have ME I disable it and coreboot.
I can do whatever I want to my PC hardware and my software remains under my control. This is quite different than cell phone based computer platforms.
So, it's not locked down now. I won't lock my existing PCs I hand assembled down in the future, and I'd never buy any hardware that was locked down. In fact, I've never bought or used a smartphone because of this.
