you do not grasp the basic science. You seem to start with the agenda that IBD should not be auto-immune despite all the massive evidence from genetics to antigens that it is an auto-immune.
What massive evidence? Here is a public presentation on Crohn’s Disease by Dr Marcel Behr of McGill University, on May 28, 2014.
He says there is little or no evidence that IBD is an autoimmune disease. The latest scientific studies indicate that it is an immune deficiency disease, a deficiency against one particular type of bacteria. The signs point that it may be a mycobacteria, the same type of bacteria that causes tuberculosis and leprosy
Yes immunosupressants help with IBD, but they are also effective to curb inflammation in meningitis, tuberculosis, and leprosy which clearly are infectious diseases.
I am not sure if he is correct because so far nobody has come up with a cure. But at the very least we can say that the scientific consensus is moving away from IBD as an autoimmune disease./www.youtube.com/watch?v=7x3lq8QEg5g&feature=youtu.be”The latest double-blind scientific studies indicate that the theory of an overactive immune system should be discarded along with other obsolete explanations such as in the 1950's when it was assumed that IBD was 'all in your mind', a psychosomatic disorder and the recommended treatment was a psychiatrist.
"Although the autoimmune theory has been unequivocally dismissed for over 20 years, many physicians and gastroenterologists cling to this theory - the medical community has historically been slow to change"