Not even this. The problem is that hardware manufacturers have what amounts to technological supremacy over the rest of the society. If you buy an iPhone, it's

Not even this. The problem is that hardware manufacturers have what amounts to technological supremacy over the rest of the society. If you buy an iPhone, it's not illegal to jailbreak it in most countries. The problem is that you lack the technology to do so reliably (i.e. change the fuses in the SoC to flip it into a less restricted mode of operation) so you have to resort to vulnerabilities to untether it from Apple's servers which you never wanted in the first place. Android is marginally better because of the officially unlockable bootloader, but there still are various encryption keys within your device that you aren't allowed to see and/or overwrite.