The cold, hard facts are that some ethnotypes are doomed to short lives because neither their livers nor their cardiovascular systems are designed to allow for long life.
Some, on the other hand, will live longer because of their genes IRRESPECTIVE of what they eat, drink or do.
These things are not presently the fault or responsibility of "the health care system".
I doubt it is politically feasible to create a health care system that evaluates relative risk based on genes.
On the other hand ‘Star Trek’ type of physical health evaluation is nearly within our reach. DNA defects can be repaired. All we need is another gadget to sample our bloodstreams to determine what level of vitamins and minerals we have and then adjust accordingly.
http://www.sciencedaily.com/releases/2008/06/080602214135.htm
I also think it is only a matter of time before science determines regular chiropractic adjustments are as beneficial as good dental hygiene and can also play a major part in repairing DNA defects. The only current limitation maybe w/ hereditary defects
Or to chronic infection. Once the doctors believed that cancers were never caused by infection, then it was 1%, then 10% - and I'm not sure what it's up to now, but a good number of cancers have been tied to infections.
But I do agree, such a plan will lead to just about all illness being blamed on lifestyle.