In first millennium China, Buddhist monasteries owned up to 20% of the country's land. Enormous tracts of forest were cut down to supply the wood to build monasteries, temples, towers, and more. Buddhist monasteries even owned slaves to work their lands.
For much of this period, certificates of Buddhist monk-hood were sold by the state or sub-state actors like dukes and princesses to quickly raise money. These certificates got one out of forced labor, which was often used to build Buddhist structures. (Forced labor was a common state inducement for all sorts of reasons in this time.) The explosion of "monks" led to crackdowns, stripping those who couldn't recite sutras or hadn't shaved their head of their privilege. Those with certificates were often exempt from certain taxes, though this privilege was only certain for those at imperial monasteries.
Sources:
"Buddhism in Chinese Society: An Economic History From the Fifth to the Tenth Centuries" By Jacques Gernet
"The Buddha's Footprint: An Environmental History of Asia" By Johan Elverskog
I don't know much about Daoism and Buddhism, but I know a guy who compliments people in the West who claim to be Daoists on their excellent Chinese. Most of them don't get the joke (it seems many important texts have never been translated).
Concerning Buddhism, don't certain sub-branches of Zen buddhism come quite close to the Western "no magic" version?
The hells (there are many cold hot and cold hells) and heavens and other realms of the dharmaic cosmology are important metaphors making a lot of philosophical/psychological sense. You can easily tell where are you supposed to reincarnate if you are sufficiently self-aware. Once you practice enough you can become more or less free from the tendencies of your mind which are meant to put you there or there and this will improve your overall health, mood and productivity. You can even realize that you already are living in particular realm actually despite living in the same world everybody else is from the physical point of view.
> Enlightenment is now impossible in this world because it's too corrupt. If you chant enough, this or that Buddha will reincarnate you into their personal realm where you can become enlightened.
Also makes sense: it indeed is very hard (if at all possible) to become completely free from how your neural system is preconditioned to react to what happens around. And if you feel bad about this you better chant than panic or do unpleasant things other religions followers might believe they should to do.
Also, no matter how much mythology does Buddhism contain, that comes packed with very practical and objective goodies, readily available to everybody interested. Buddhists would teach you to maintain mental health and wouldn't label you a heretic if you ignore parts of the teachings or interpret them your own way (unless you start propagating your unorthodox views too aggressively). Isn't this nice?
- Hell and heaven realms where you can get reincarnated into if you've lived an especially bad or good life
- Various gods and demons
- A timeline spanning trillions of years and hundreds of Buddhas
- "Celestial Buddhas" that came from space
- Enlightenment is now impossible in this world because it's too corrupt. If you chant enough, this or that Buddha will reincarnate you into their personal realm where you can become enlightened.
The majority of Buddhists in the world believe and teach these things. The modern secular western Buddhist community is sort of like a Theravada-lite in my opinion. Theravada already doesn't have a lot of the above, but they do have reincarnation, different realms, magic powers, etc. In the west the Four Noble Truths and Noble Eightfold Path are emphasized while chanting, ritual, etc. as well as supernatural beliefs are downplayed.
So when you say that Buddhism is rational and consistent, you're referring to a westernized version of it. In my opinion, what Siddhartha Gautama actually taught, or at least what early Buddhism seems to have been, is somewhat close to the pared-down westernized version of Buddhism, just in a Hindu context and belief system due to the time and location of the teachings. But this set of teachings is NOT the same as the religion of Buddhism as practiced by most Buddhists.
All that being said, something real is in the core teachings. You don't have to take anyone's word for it. You don't have to have faith in anything. Just learn to look inside, and see for yourself.