I think effect or influence are very different from control. I agree one can be influenced conciously or unconciously.

I am talking about not having to accept ANY attempts.

My reaction was to what I consider to be the forceful description by the OP. Also over the last 25 years I have represented a lot of people being held and treated involuntarily. So perhaps I have a different experience about the use of power in the health care field. And again, if others think it is useful and are willing to endure a therapist or whomever treating them in the way the OP and others have described, then I hope it is good for them.