There's a pretty stark difference between medical science, medical practitioners, and medical institutions.

Medical science has done a lot to earn credibility over the last couple hundred years. It fully eliminated a disease that was a leading cause of death in multiple human civilizations. It reduced rates of infant mortality by staggering numbers. It created vaccines and surgeries that have each saved countless lives and effectively cured life-altering disabilities and injuries, and demoted tons of diseases from death sentences to mere manageable disabilities or even mild temporary inconveniences

Medical practitioners are a mixed bag that ranges from total altruists to total mercenaries. Most people can learn a skill and incentivizing any skill via things like money or social status creates some goal-misalignment, but also dramatically increases the prevalence of the skill and also the community surrounding it, including research, pedagogy, and infrastructure. I think there's considerable value in not automatically trusting every medical practitioner, but on the whole many of them have earned credibility

Medical institutions have mostly been responsible for the existence of trustable practitioners and research, though in the rich world and especially the US specifically there are significant misalignments that come from capture from power-hungry parties in both government and the private sector. The American medical establishment in particular seems at this point near unsalvageable, having broken so badly that it often deliberately tanks quality of care to enforce state power or to turn a profit. We should probably rethink a lot of how institutions fund research, administer hospitals, prioritize care, act as financial buffers, what legal and enforcement authority we vest in medical practitioners sanctioned by the institutions, etc. So I agree with you there, especially in the United States specifically, though much of this was apparent well before 2025 (practically before I was born)