Root cause of vitiligo, thyroid issues, autoimmune diseases etc!!

I strongly believe after much research that the root cause of autoimmune diseases (vitiligo, Hashimotos, psoriasis, etc.) is that our immune systems are weakened from our diets, an overgrowth of bad bacteria, and damaged intestines in which 70-80% of our immune system resides. It is now being questioned whether or not cancer is also causes by a candida yeast overgrowth and weakened immune system. Supplements: L-Glutamine powder - 1/2 tsp on empty stomach 2-3 times a day. Also helps with IBS. Helps rebuild the lining of your intestines and boosts immune system. NAC (nac-acetyl cysteine) - 600mg. Live cleanser. Helps reduce effects of HIV/AIDs and toxicity of chemotherapy. Helps with vitiligo and autoimmune diseases by eliminating toxins and pollutants from your system. Also helps with hang overs from alcohol and cleansing your system. Betaine HCL 648 mg- for low stomach acid, usually caused or related to candida yeast overgrowth. Has 150mg of pepsin in it. Take with and after meals. Keybiotics - a probiotic to boost your immune system, balance your gut bacteria, kill off the candida yeast (candida overgrowth causes yeast infections, obesity, diabetes, possibly cancer, etc). Has 37.5 BILLION organisms.