have you ever been in an ER room? There is a big sign on the door stating that everyone who walks through that door will be treated, insurance or no insurance. The system already treats everyone who needs it.
People get treated. the prob is not getting treatment, it is about who pays for it.
If they decided not to go to the hospital, it is not the fault of the hospital for not treating them - it their own fault for refusing to get treatment.
Sure, if you go to the hospital you have to be treated. However, it's generally better to take care of your problem before it gets to the point where you have to go to the hospital. Of course, there are plenty of cases of unavoidable emergencies, but there are also plenty of cases of ER visits that could have been avoided if the person had had preventative care.
Yes, the system already treats everyone, it's just a matter of how well those people are treated.
Analogy time! Let's say you basement has a problem with flooding. Now, one night it rains cats and dogs for hours.
Instance 1: You're home and know that the rain is coming and that your basement is probably going to flood. So, you get a head start and move anything valuable that could get damaged, and you're ready with your wet-vac before the water even starts coming in. In this case, you are able to save everything you want and even save your floor from any damage because you can keep up with the water coming in.
Instance 2: You're not home and don't get there until well after the rain has started. By the time you get in, there is already an inch of water on the floor. Several valuable things are already damaged and by the time you get all of the water out many hours later, your floor has some water damage, too.
Now, which of those instances is preferable?