Humans are omnivores, not strict vegetarians or fructivores, which you can tell from our teeth. We would not have canine teeth if we were designed to be strict vegetarians.

Otherwise I agree with what you have said here, and I personally feel much better the more plant-based foods I include in my diet.

I am not vegetarian, though I eat a lot of vegetarian meals, and even a lot of vegan meals. I grew up in a neighborhood with a lot of Japanese and Chinese neighbors, and as a result I tend to look at meat as more of a condiment, not necessarily the entree.