This is as Western as our mainstream thinking (and cockiness) gets. You know, evidence can only come from a lab with a prescribed setup, inspected and certified by my outlandishly smart scientists. And oh until then umm can we -force- everybody to not use it? I’m African and many of the medicines I’ve consumed and been cured with are unproven according whatever criteria you’d use. Sometimes it has been administered by a shaman following family tradition.
It’s a sad state of affairs that somehow we’re certain we have discovered the single method of finding the single point truth and all other methods are wrong. Also considered certainly wrong is the idea that truth isn’t a point value but a spectrum and based on its utility to our short life, we lie peacefully in the spectrum or even out of it.