What’s wrong with the current health insurance system?

How about this?

This is the house they've built: an insurance market where plans are written for the healthy and all legal efforts are made to exclude the sick. That's meant premiums are somewhat lower than they'd otherwise be, but only because the people who most need health-care insurance aren't able to afford it, or in some cases, aren't able to convince anyone to sell it to them. Now that arrangement is ending and they're scared that they can't provide an affordable product to the people who need it. They may be right, but it's evidence of how deeply perverse their business has become, not of what's wrong with health-care reform. When they say that the individual market would be cheaper in the absence of health-care reform, they're saying the individual market would be cheaper if they could continue refusing to sell affordable insurance to people who need health-care coverage

Source: Ezra Klein - The House That Private Insurance Built