This is untrue. Most people with psychological illnesses such as depression accept psychological explanations for their symptoms and undertake treatment along these lines. The fatigue of ME is similar to that experienced by athletes after strenuous activity. Such tiredness is also more quickly self-limiting. If for example there is a general defect in mitochondrial metabolism then the energy to both muscle fibres and brain neurones would be affected.
Patients perpetuate their own illness.
This implies that not only are they unwell but it is also insulting to their intelligence. In my experience patients undergo enormous financial, social and relationship losses in their life because of this illness. Hard to believe so many people choose to do this of their own free will. Additionally they are then prepared to go to almost any lengths to get better. Also not the actions of people perpetuating a condition associated with non-activity.