"These vendors don't trust you to manage your own security, instead they want you to hand all trust over to them."
"This requirement puts even more control of your hardware into Microsoft's hands."
Whether the concept of the "password" is appropriate for computers doesnt really interest me.
However when companies like Microsoft want to control how I can use a computer, thats a problem.
These proposals are not about "security" in every case, they are about control.
The user could be in a situation where security really isnt a major concern (and thats for the user to decide) but these companies will still be able to control what she can and cannot do.