Intelligent adaptation is the key to survival of our species. It should be noted that it is due to our omnivorous adaptation skills that we survived as a species, and we are alive now, so we can debate the fine points of diet. Simple logic suggests one should eat foods that are agreeable to you, in the form that is easiest to digest. Diet is not so trivial that it can be reduced to inaccurate, simplistic slogans. There's a lesson here, if you are open to receive it.
Wild animals die of disease, despite eating a raw, natural diet.
So too, human rawists can and do get sick. If you have made a reasonable, sincere effort at a raw diet, and it doesn't work for you, then common sense suggests that you should change diets. Study this sublime health system, at length. Seriously, the most sensible way to view raw diets is to regard them as potential tools for good health. Like any other tool, they can be helpful if used correctly, and may be harmful if used incorrectly.