Im guessing you're talking about healthcare costs...
Health insurance companies don't control the cost of Healthcare. Supply and demand for healthcare controls the cost of healthcare. The only way to decrease the price of something is to decrease demand or increase supply. Econ 101ish but I haven't heard any talking head mention it yet.
people refer to the US healthcare system as a capitalist market system but its not really. while demand goes up year after year unobstructed the supply side of it is heavily regulated; JCAHO, the FDA, the AMA, the CDC, the DHHS, the NIH, the ARRT,...then you have each state with their own regulatory agencies...oh yea, i almost forget the lawyers.
anyways, everyone has their hand in the cup. granted if they didn't exist there would be snake oil salesmen on every corner, however these are still factors that people dont consider.
untill you can make med school not cost $200k, entice doctors to work for $30k/year and find someone to work around infectious diseases all day for $7.25/hour, and make people stop going to the ER for a hang nail. your healthcare costs will continue to climb. and your health insurance will go up as a result of it.