Probabilistic models based on naive gross-over-simplification of wastly complex reality at its best. There is indeed a huge distance between DNA and non-geneti

Probabilistic models based on naive gross-over-simplification of wastly complex reality at its best. There is indeed a huge distance between DNA and non-genetic diseases and attempt to bridge this gap with a naive probabilistic model will surely yield nonsense. Social and environmental factors are much more fundamental than actual DNA (gene regulation is still poorly understood) for non-genetic diseases. So, yes, statistically it is true.