Not disagreeing with you here. There is no replacement of advanced science for treatment.
The issue here is say if we do change of our life style to say ginger tea, it will not work like modern medicines. It will take long process. Unfortunately we are expecting them to do miracles which even modern science can’t do.
Each body is different and effectiveness of dietary alteration is also different
One thing I can say though, changing to natural foods like vegetables, fruits etc will not harm or make the condition worse. Because we are in this medical state we are expecting instant results. One need to practice consistently the dietary side for many many years and hope the condition won’t occur (not as requirement /expectation)