So, as I've noted before, I am at least 'hippy adjacent'. I take supplements, I believe in, and have used successfully, a lot of natural products for various things and believe that if the science was applied to these things, and not just massive pharma corps, it would be proven that we can make peoples lives better in a natural way.
My wife is a veterinarian, who is also trained in herbal medicine.
What Danny notes is important -
1) Loads of our pharmaceuticals are still discovered from natural sources. GLP-1s, the current super-seller class of drugs, were originally found in the saliva of gila monsters, after noting that even though they eat super big meals infrequently, their blood sugar doesn't vary much at all...
2) When you source a drug in nature, mass producing directly from that source is often a problem. Like you just can't get a gila monster farm, let the buggers drool in cups, and then ingest or inject the results, much less produce enough for everyone who wants or needs it. Artificial mass production is usually in order.
3) A
huge problem with natural remedies is
dosage, which isn't easy to control if you just grow and dry an herb, or make a tincture, or the like. The natural form can have a wide range of content of the materials you actually want - and the range of dose that actually works is often kind of narrow - to little and it does nothing, too much and it is a poison.
4) Another
huge problem with natural remedies is
purity - making sure you are getting the stuff you want, and nothing you don't want. Like, sure, I grew this lavender in this tea myself! Organically in my own garden! ... right next to my organic bird feeder... so there's a lot of organic bird poop in there as well...
Not to say that our approach to pharmaceuticals isn't in bad shape. But having folks who make pure, regulated medicinals is necessary once you aren't in a little house on the prairie