Maybe if you bothered to read the post I was responding to instead of pretending to be ignorant you'd get somewhere.
No, but if I tried debating someone who was intellectually honest,
then I'd get somewhere.
Thorn: "Who determines the quackery if the FDA does not? The business themselves?"
You: "The businesses, the consumer, the result of false advertising lawsuits."
A false-advertising lawsuit would be based on the allegation that a company claims a product does something it actually doesn't do. Since we're talking about "medical" products here, that translates to "this product is claimed to treat this ailment". If a person takes the product and his ailment gets worse rather than better, that person has suffered
damage as a result of taking that product (where, if the ineffective product weren't allowed to be sold in the first place, the person lacking the option of using it would've taken or done something else that's actually effective instead). And we're not even talking yet about products that cause harm through action rather than omission.
Under your proposed method, some consumer or group of consumers would have to be actually damaged by a product before the product is considered unsafe for use.