For instance, there is a documented cure for diabetes. So. American tribal medicine people have been curing it for years with a mixture of plants and it only takes 1 week to do it. Why aren't they using it here? Because they make billions off of treating the disease. The drug companies and researchers let people suffer and rot from disease so that they can make more money.
What cure would that be, and what is its mechanism?
The people that used those remedies have done so for 10s of thousands of years and after all of that time, you don't use what doesn't work.
Only because they didn't know any better. Many plants do have medicinal value, but many others in common usage do not. Accurate knowledge of physiology is relatively recent.
Don't make the mistake of thinking that just because something has been around for a long time that it's desirable or effective. Snake-oil salesmen have been around for just as long. If these remedies that have been used for tens of thousands of years are all so effective, then why do they consistently fail to show greater healing effects in controlled testing than a placebo?
The misunderstanding comes from the fact that generally, the alternative remedies do not cause any (or in some cases, as much) harm as conventional treatments in and of themselves. (Take, for example, Chemotherapy or intrusive surgery). The problem arises when people fail to seek treatment for serious conditions that can actually cure them in favor of pursuing false hopes in dubious "alternative" medicine.
I admit there are things about modern medicine that people find disagreeable. There is also the fact that we don't pretend to be able to always cure diseases for which there is no very effective cure. You're right, people need hope. And that's understandable. But if there really is no hope, can you sell it to them with a clear conscience?
And the high cost of modern medicine is the obvious issue. It's true, there *are* greedy people who are not looking out for the best interests of the public. But that's the case anywhere. Surely you would have to agree that there are many people like this involved in alternative medicine as well?
To generalize and say that we're all only out to rob people and keep them suffering is ridiculous and, quite frankly, extremely insulting.