"The main reason is special interests who have an opportunity to lobby, be it concern groups that receive government funded, parents etc. who are naturally prone to bias from their own situation, or, more often, big businesses that benefit from the barriers to entry that are provided."
So, get rid of patents?
"The Government’s intervention massively increases the cost of healthcare, by, for instance, stopping the selling of healthcare across state lines, having the FDA adding to the cost of medicine, not to mention delaying its release, etc."
Healthcare can be sold across state lines. Health insurance cannot, which is different. If you are putting health insurance with healthcare...ok, but strange. Health insurance companies add costs to all medical procedures through overhead of profits and bureaucracy. Should we eliminate that?
The drug companies better be doing the testing the FDA requires, or you are playing Russian Roulette with any drug you take. Who is to say what it does? Drug companies spend a lot on marketing and outreach to doctors to get people to use their stuff. That is nuts, if that is the path you are advocating. No testing, no barriers to entry, and lots of marketing?
"Why need it be regulated by government in a top down fashion? I’m all in favour of keeping practices good, regulating if you will, but bottom up, by the consumer."
That is great, in a system with perfect information, like a theoretical free market. In the real world, it works pretty poorly. How are you supposed to find out anything about the doctors or treatments? We can have a big Kudzu for doctors, I guess. Which would still be pretty poor information. You are kind of stuck in the theoretical. It is often hard to get good information on the differences between operating systems, and there aren't many of those.
"This is misunderstanding the nature of healthcare. It is a superior good, so as people become wealthier, they spend more money on it, as has happened. If the price of healthcare were really going up, rather than the availability of advanced procedures, the price of individual treatments would be going up. It is not."
The usual treatment for things is having the price go up. Cancer treatments have gone way up. Because of patents, most technology is 17-20 years old, before it becomes cheaper, and very outdated. On top of that, going off the no regulation system, with litigation for poor doctors, which we aren't even close to, but has caused doctors to prescribe MRI and CAT scans for everything, just to make sure they are covered.