You were still subsidizing everyone as the costs for servicing the uninsured at hospitals was being passed on to the insured
Yea, and this cost was wildly over exaggerated by people to make this point. The entire ACA was created to require no more than a few million people to carry insurance who didn't have it- we blew up the entire system for a tiny percentage of people, many of whom were teenagers or idiots who didn't want insurance.
Also, pooling within an insurance pool is absolutely nothing like Ponzi scheme subsidization on the federal level. Your insurance pool is actively managed and there are people actually derisking the people inside that pool to assure they can control costs.
The ACA mandated Federal subsidizing with no thought or concern for how much it would hurt a huge number of people to pay for a small fraction of people. My premium has more than doubled in 2 years when it barely moved in the 8 years prior at this job.