[Command Prompt]

I agree that lifestyle is an important factor in many conditions, however genetics and other random factors still play a large role in determining the quality of life for many people. Everyone actually.

Holding people personally responsible for random variations in the gene pool is like saying the weather personally makes conscious decisions.

Essentially, the only way you can justify this line of thinking is by giving sway to some kind of hard determinism, in which certain people are created to be "better" than others, and everyone else just has to "deal with it."