If it weren't for plants you also wouldn't be here typing right now, this is a fact. You don't need to consume meat, all those nutrients you are talking about such as proteins, calcium, enzymes, vitamins such as B12, can all be found in meat substitutes
And ? I don't understand the whole point of you argument here, if it wasn't for meat you wouldn't be typing here this is a fact, meat kicked human evolution ( a scientific fact) and meat cannot be be easily substituted not by any mean.
Thought you were a christian or are you one that believes in evolution? Is it true that we wouldt have evolved without eating meat? Couldnt we have got the protein from elsewhere?