> The reality is the ACA allows insurance firms to sell obscenely over-priced plans to consumers.
As far as I am aware, the ACA actually introduced limits on how much mark-up health insurance can have, where 80% of the cost must go to actual medical expenses, and administration, marketing, etc must be no more than 20% total. So how is the ACA the cause of insurance mark-up?
I think the actual root of the problem is not mark-up but that health care in the US is quite expensive (and always increasing). The ACA in some cases shifts who pays for it (young healthy people pay more), but it doesn't appear to change much the overall cost. It sucks temporarily for those younger people, but considering they will most likely become older, less-healthy people over time it doesn't seem that unfair overall.
> A sane system would have seen price controls in conjunction with the requirement for insurance.
If you are paying 4x more though, it sounds like the marketplace may be breaking down in your location with a "death spiral", where the price goes up, all the healthier people leave, causing the remaining insurance pool to be even sicker and the price going up even more. The whole purpose of the mandate was to prevent this, but it looks like it's been repealed. Price controls in that situation is hard since the pool is actually expensive to insure, I don't think the government can force the companies to sell at a loss. To reverse it maybe they could re-instate the mandate, or change it to a tax, or add a public option. Or, of course, give up on insuring pre-existing conditions.
> I would happily pay taxes for a fully nationalized system
Keep in mind, there are other countries like Germany and France that have private insurance markets and much cheaper care. I think it is fully possible for the US to implement a nationalized system that does not achieve the cost-effectiveness that we want. The VA system might be an example of how that might go.