PeterWellington:So the people with bad genes get charged less, but now the people with good genes get charged more.
Which means that the people with good genes will be more likely to leave the system (to essentially self-insure if there are no other options), causing the bad gene people to be over represented in the pool, which means that the medical costs for the pool as a whole will go up, forcing the insurer to raise rates for everyone, causing more good gene people to leave....
Eventually, the price for the bad gene people is now at where it would have been without the law (probbly higher), and the good gene people are left without any insurance at all. The market got to the same pricing conclusions it would have without the law, the law's only effect was to remove insurance for the good gene people. Typical class-warfare result, don't help the "underpriveledged", just screw the "overpriveledged".
On the other hand, the insurance companies can only take their discrimination so far. Insurance is a statistical game, pooling risk across a variety of people. Should they get too precise in their discrimination, they introduce a higher level of certainty into the outcome, undermining the idea of pooled risk, bringing permium costs closer to actual medical costs for each individual person (as opposed to them being in line in the aggregate, but with a wide variance for individuals) and eventually obviating their entire industry when people realize the insurance companies are providing no useful service, but still collecting a profit.
Insurance companies make money by taking on risk that individuals don't want to be exposed to. If their own policies seek to pre-determine individual risk as accurately as possible, it ceases to be risk, and they cease to have a reason to exist.
The state won't go away once enough people want the state to go away,
the state will effectively disappear once enough people no longer care
that much whether it stays or goes. We don't need a revolution, we need
millions of them.