ACA without the individual mandate is not the same as no ACA. Plus, lots has changed in the meantime: a growing shortage in physicians, even higher healthcare costs, an expanding role for nurses. The healthcare market is not static.

ACA without the individual mandate means that the insurers can't make the exchanges work causing their collapse. One benefit for the insured of millions fewer insured is that it will aliviate the shortage of doctors and nurses, probably to near pre-ACA levels.