That’s horribly ignorant considering that many diseases have a large genetic component and people are rarely 100% compliant with the things they need to do to prevent a disease. Even when a doctor lets them know how to prevent the disease. How would this work for a disease, for example, like Alzheimer’s where the onset is much earlier in life (40s) but doesn’t manifest until much later in life and has no diagnostic test at age 40? What about hypertension where the majority of it is idiopathic? Would the doctor be blamed for all this despite practicing evidenced based medicine? I’d argue that a lot of diseases are this way and placing the blame on a doctor is a way to shift personal responsibility.