Awww, sad. I thought you might be above such simplistic identity politics nonsense. If you were to follow the links I'd provided you'd see that it's nothing like that. Maybe start with the doctor from Finland who was in charge of GAC for Finland and has totally reversed her opinion on using the Dutch protocol.
Again - with jazz hands - the people who crafted the GAC protocol did NOT use control groups. Can you at least acknowledge that you've thought about that one sentence? How can you say a medical protocol has any efficacy if you don't have control groups??
Your vaccination question is again quite simple minded, but just to nip that one in the bud, yes, I'm vaccinated. Because I understand how exponential growth works, among other things.
As for who to trust - first off, understand that there is no central medical authority in the US. There are business associations like the AMA but those are not primarily medically focused. So there is no "central authority" in the US that has codified GAC. It was accepted by a few doctors who saw a big spike in GD and looked to other docs for answers. European countries tend to have more of a central authority approach to establishing medical protocols.
If I had a kid with GD I would do a lot of research. I'd ask the doctor what their experience is, what studies they trust, what their longitudinal findings are, what alternate approaches they're familiar with, and so on. Most docs in the US are fairly new to dealing with GD.
And I'm sort of middle of the road when it comes to how big government should be, I'm probably slightly left leaning. But I think that when it comes to public safety, the government ought to have oversight. Of course they should enlist the best experts they can.