And much more effectively, and at much larger scale.
The same security flaw that lets you jailbreak a phone could also allow a hostile entity to say "we don't need you to unlock your phone/laptop, we'll just seize it and break into it using known security vulnerabilities".
Buy devices that you control. Don't try to make other people's devices less secure because you want to break into your own.
I was gonna say - who's more likely to benefit from memory corruption bugs: the general populace, or the trillion-dollar military-intelligence complex?
The same security flaw that lets you jailbreak a phone could also allow a hostile entity to say "we don't need you to unlock your phone/laptop, we'll just seize it and break into it using known security vulnerabilities".
Buy devices that you control. Don't try to make other people's devices less secure because you want to break into your own.