you are correct. The real dharma has remained only in documents. When we see it in the real world it is drastically different and ambigous.
I guess the only dharma originated in this land which makes sense in contemporary world is buddhism. which is still the way it is described in the documents and relatively less abused because of the douments maintained by other asian countries. otherwise every dmarma (way of life) defined by our forefathers has been abused and distorted by some greedy people.