To whom? I can imagine starting wars with fake videos.

It's hard to imagine someone kvetching about not being able to sideload apps to their phone reaching that point of significance. I don't mean to completely dismiss very real concerns about what people can and can't do with their purchases, but OTOH war involves actual people actually dying, and manipulating media is a fantastic way to get one.

They're both the same problem: control of information. They're both useful for starting wars (or worse).

removing methods to circumvent monitoring and control of information makes it easier for a bad actor to take advantave of these tools. Yes it's nice for the good guys to be able to keep their code secure, but do you want a dictator to be able to do that?