There will always be exceptions like your case. However it is clearly the case that there aren’t hundreds of different types of gut fungi which grow out of control over a dysbiosis occurs in the guts microbiome. There is generally one type and it is called Candida. The problem is called a Candida overgrowth. Candida generally eats carbohydrates and sugar. A carnivore diet will generally starve it and cause a die off. The Candida generally released toxins that cause auto immune disorders.
Now I’m speaking in the cases of most not all people who experience auto immune disorders and where those disorders are caused by the guts microbiome.
There are also the cases where the gut has been damaged by gluten and other plant materials and is leaking food into the blood.
As far as I’m aware no animal flesh of any type does such damage to the gut. No fungi eats animal flesh.
You seem to think gut dysbiosis is one bacteria dominating others. No. It is a fungus in most cases. A single called yeast that rapidly duplicates called Candida and eats plants.
Unscientific only because the science is behind