The RNA technology that was used to develop most of the covid vaccines is driving an absolute revolution in medicine right now. A vaccine for malaria, the disease that has killed more people than anything else in history. Personalized vaccines for cancers — the list goes on and we're just getting started. Much of this development is locked up in commercial pharma companies — there are papers, of course but replicating them in practice, let alone continuing development, is very hard without active access to the team involved. It's also very expensive. A lot of that development money comes from the US government. Now, yes it's a problem that that funding is going to private companies that are ransoming patients for their life savings in exchange for life-saving medicine, but this is as much a regulatory problem as it is a structural one. As long as those teams exist, the possibilities of these tools exist also.
Having an American government that wants to actively dismantle vaccine-related research and eliminate its funding is an existential threat to humanity: