I believe in moderation for everything. You cant get all nutritional benefits by staying on plant foods alone, you need an ample amount of animal food too. God created animals to be eaten by man and I dont think anyone will violate their right by eaten them in the appropriate way
Though it is proven that the overly consumption of red meat is bad for the human body, It doesn't mean that one should go full vegan because of that, Red meat itself is not bad at all but when it is consumed in excess that's when the problem begins.