Withholding medical care is one of the means our masters use to keep us cowering puppets and slaves. It’s like holding back water from a slave laboring in the cotton fields until a few more acres are cleaned. Coupled with a debt based economy very few people will ever even contemplate bucking the system.
Having established that practically the only way to avoid the risk of complete calamity from injury or illness is to work for the government, or corporations or some other source of inexpensive “group coverage”(which drives down wages), all but the wealthy or more exceptional risk takers, are effectively shackled.