Well, that does get into the question of how the other methodologies work. TCM does have that fairly dumb system where they thing of everything in terms of dualities and approach medicine accordingly, like, this plant is "hot" so it will help you if you have a "cool" disease. You can't make the same generalization about the efficacy of that as you could about another methodology altogether.

Also anti-malarials are a really specific thing. Practically nothing is going to be a specific antidote so you're looking at really haphazard things like bolstering immune response. If you take a broader category like say, anti-inflammatories, you'll find a lot more effective traditional remedies.