If you’re saying “Manipulating people like that wouldn’t work, because you always get to choose whether to do what a hypnotist tells you to” then I see two objections.
The fact that you think you could choose not to do it doesn’t mean you actually could in any very strong sense. Perhaps it just feels that way.
It could be that when someone’s explicitly, blatantly trying to manipulate you via your subconscious, you get to choose, but that a sufficiently skilled manipulator can do it without your ever noticing, in which case you don’t have the chance to say no.
(I am not sure that that is what you’re saying, though, and if it isn’t then those points may be irrelevant.)
If you’re saying “Manipulating people like that wouldn’t work, because you always get to choose whether to do what a hypnotist tells you to” then I see two objections.
The fact that you think you could choose not to do it doesn’t mean you actually could in any very strong sense. Perhaps it just feels that way.
It could be that when someone’s explicitly, blatantly trying to manipulate you via your subconscious, you get to choose, but that a sufficiently skilled manipulator can do it without your ever noticing, in which case you don’t have the chance to say no.
(I am not sure that that is what you’re saying, though, and if it isn’t then those points may be irrelevant.)