But how/in what ways does the police state influence doctors to approve of removing the rights & warding a person? In order for the two things to be intrinsically tied, I'd think they'd have to influence each other & become a vicious cycle.

Seems this friend of yours, the govt. is using their mental illnesses against them? And if so, How are they able to make the argument that the mental illnesses prevent the person from being able to take care of themselves?