[jtriangle]

There's no state actor that any of that would protect against. You, and everyone else, is already compromised at a level so deep there is no hope of digging out if that is your adversary.

What these technologies protect is market share, nothing more.

[jvanderbot]

Strong assertions with no justifications.

Targeted attacks against individuals or small groups from state actors are basically impossible to protect against. Widespread compromises of all operating systems at the boot level should be fought against.

I don't really think malice explains Grub being limited b/c of Microsoft's software at the boot level. There's conflicting objectives at play, and that will inevitably produce, well, conflicts.