I dont think it is.It's a bit of a stretch to claim that cancer, accidents and disorders are all the result of personal choice, no?
People like to blame genetics for disease. Being predisposed to a disease does not mean that you will get it. People like to believe it is a lottery. To a large extend I believe it is not. It means that if you dont pay attention to your diet, life style and environment, you may pull the lever on the gene that gives you a cancer. People dont like having the fact that they caused their disease laid at their feet but for the vast majority it is IMO a fact.
Accidents, to a large extent happen during activities that are not absolutely mandatory. People are making a choice to put themselves in the position. For some perspective consider this. Everyone considers driving a right. You go out for a sunday drive to get ice cream and your family dies. That is your fault, regardless of the circumstances surrounding the accident. You didnt need ice cream or to drive. You made the choice to engage in a frivolous activity where the penalty for failure (a car crash) carries the potential for significant loss.
If you boil almost everything down you will find that the choices you make are almost always a significant contributing factor to the situation you find yourself in, good or bad.