I’m guessing stuff like Gerson Therapy where you fast only consuming fresh vegan juice and nutritional supplements while you give yourself organic coffee enemas to cure your cancer.

Overview link for the curious.

IMO there is nothing wrong with alternative/traditional techniques so long as they don't actively harm the person and they are not expensive and they don't discourage seeking actual medical treatment. Sadly a lot of these treatments break one or all of those caveats - and those should be cracked down on. Yeah they might not do much more than a placebo effect on the person - but the placebo effect is very powerful and can help them manage or lessen their symptoms.

If someone wants to take some herbal tea to manage pain or chicken soup to help with a cold there is nothing wrong with that. So long as it is not actively hurting them or stopping them from actual treatments or causing them to pay far more than need to for it. IMO we should be making more use of the placebo effect as it is a powerful effect, and there are ways to do it ethically with out trying to scam people or lead them away from modern medicine.

Even a some clinical medicines, treatments and even surgery has been shown to have no or little more than a placebo effect. Though once difference here is that when these are found they tend to stop being used. But does go to show how powerful the placebo effect is.

Hell, you could make a whole market off of sugar pills with completely honest marketing as the placebo effect still works even when you know it is only a placebo. So long as it is reasonably priced and honest about what it is (though this could very easily be abused for profit as well - so would need to be regulated quite well).

That said, I do think harmful or predatory treatments should be cracked down on. And sadly a lot of alternatives at the moment do fall into this category. Additionally I also think the pharmaceutical industry should be cracked down on as well as they do some very predatory practices as well, even if their treatments are more effective it does not mean they need to charge an arm and a leg for it.

This always struck me as a lazy approach. Traditional methodologies for medicine may not be as rigorous as Western scientific ones, but they weren't just universally so stupid that they couldn't figure out something didn't even work. At least not across the board. You want to vet them to the highest standard possible, but you can't just assume they don't work by default, a lot of that stuff hasn't been studied at all.