Is it normal to invent a diet because autistic people do?

All who have Selective Eating Disorder, even those undiagnosed with it, including autists, are different in their fussy eating, even Adolf Hitler did it, based on his doctor's advice and reinventing it. He had to do it didn't he? He had to eat the following 6 meats to justify his diet: stuffed pigeons, eggs, caviar, Bavarian sausages, liver dumplings, and slices of ham. Only eating his favorite meats, so I decided to justify my diet by eating things from an animal and honey only when offered to me (like Dalai Lama said). And Hitler was a quasi-vegetarian claiming to be vegetarian, though very inconsistent and ate meat, mostly white meat, as scarcely as he could. Therefore he drank mineral water and soups and ate vegetables and fruits & coffee and tea and no alcohol at all, and so do I, only more general, and added to my partially Hitlerite diet I added spring water, dark leafy greens, etc. And that was the very last time I changed my diet and since it heals me, it works, I never will change it or my 4 diets again (vegan, green vegan, purpletarian, and liquidarian). In my liquid diet includes the following: herbal teas, nut milks, vegetable broths, juices, and water and added to the list are: no water other than the two, and also included is coffee, green and black tea, cola drinks, Dr Pepper, plant milks in general (vegan), and cocoa (sucrose-free), and excluded are: alcohol, drugs, corn and rice, sucrose and sodium chloride, and also pecans, hazelnuts, coconuts, and pistachios and a long list of fructans. I have a very low fructan tolerance level, and also, truly, it's not gluten or lectins that are the problem, scientists have proven, as I experienced it myself, it's the fructans. Therefore nothing needs to change, the 4 are the perfect diets, even though a lot of this is complicated. I understand I made this up, as Hitler made his dietary restrictions up, and purpletarian means purple vegan, that means I put in my body anything vegan as purple as I can, such as red: potatoes, onions, garlic (it does exist), shallots, beetroot, radish, etc, and purple: grapes (both red and black), grape juice freshly made, rhubarb, cabbage, etc. There's pretty few purple foods and drinks, including wine. And purpletarian is a healthy diet, never makes me sick, I take alliums in moderation. Is any or all of that normal?