This idea that plants are toxic and meat is healthy is absurd in the extreme. Historical evidence shows humans at mostly a plant based diet for most of our evolution. And the various large and strong herbivores are completely contradictory to your thesis. It's similar to flat-earth in how easy it is to debunk.
the reason that this bro science works for people is that change can effectuate change EG what you’re doing isn’t working change what you are doing and that can have affect with anything, mind, immune system, you name it, I had RA and it went into remission when I just changed my diet and started eating totally different foods. Now we can say that those foods were the cure all and that everyone eat them, but maybe just change your life a bit You’re doing right now ain’t working