The average person cannot pay. Health insurance is designed to maximize extraction of wealth from the non-wealthy, while doing just barely enough that they don't immediately get register away. The reason for this is greed: sure, greed drives efficiency in capitalism, but if it isn't reined in via regulation we wind up with the abomination we have today.
This is exactly where we part ways though. You specifically said "laissez-faire", i.e. "leave it alone" in French; economically this is anti-interventionist, let the markets sort themselves out without interference from government. You are saying regulation is required for the market to function or it leads to what we have today and I'm pointing out that we already have enormous quantities of regulation in healthcare. I pointed out several very easy examples to identify with but by no means is that an exhaustive list of healthcare interventions. The very thing you are advocating for, regulations, has been increasingly attempting to "fix" this market for the past 80 years and our current system exists because of it, not in spite of it. It is not a free market in any sense of the word, and doubling down on more regulation will not improve it. I am more than happy to debate an actual free market or nationalized healthcare model, but further regulating this "free" market is misdiagnosing the system we currently have and assumes the same good intentions that have failed to improve it for four generations will somehow produce better results this time.
Seems to be flaunted in tech.
https://globalnews.ca/news/11812425/alberta-family-fights-fo...
https://globalnews.ca/news/11801531/bc-denies-funding-drug-c...
All economic systems allocate scarce resources which have alternative uses and thus rationing must always exists regardless of whether it is a free market, mercantilist, socialist, or as yet unknown economic system. Prices are a rationing mechanism within markets[1] but every other system will have its own set of one or more rationing mechanisms such as by-status, by-lot, by-need, by-survivability, etc. That necessarily means that there aren't enough resources to treat everyone for everything under all circumstances. Do you believe that all economic systems are thus macabre? If so I agree if only because life itself gives us hard choices, never utopic solutions.
[1] In terms of emergency healthcare by-need tends to be used even in market systems.
Why do you think we have a free market approach to healthcare? Why can I only sign-up once per year unless I have a QLE? Why can I contribute a certain amount to an HSA which is triple tax advantaged with an HDHP but I can't with a PPO? If I have an HDHP+HSA why can I also contribute pre-tax dollars to an FSA that is use-it-or-lose-it for dental or vision only but if I have a PPO I can have a limited purpose FSA that can be used for medical, dental, and vision? Why are there contribution limits? Or even more basic, why is healthcare tied to employment?
The reality is we don't have a free market when it comes to healthcare at all, we have a hampered market where over the years we have politically regulated it into the abomination it is today with some of the worst incentives possible. We can certainly have the debate of whether a free market or nationalized healthcare is best, they both have trade-offs, but it's fallacious to assume we have the former and discount it entirely thus leaving either more regulation or nationalization as the only alternatives. More regulation is almost certainly the worst possible option, we've been on that path since WW2.