Meat comes from animals who have pretty miserable lives up until death in the modern factory farm. and then the environmental stress from feeding and transporting livestock is huge. And the protein health benefits comes with some warnings not to eat too much meat! Raw meat is dangerous too, causes much sickness annually. Left over chicken, oops don't touch that.
Tastes great though, so let's grow the world's meat in big vats and the cow can have a well earned vacation. Fair?