Just because you are a vet or serving currently

[Maniac Craniac]

I do not agree at all with that quote.

Based on the rest of your comment, I would assume you didn't read the book? If you did, it would make more sense to you. It has nothing to do with God nor the true nature of humans, nor even animals. It also is not the type of quote that is presented in such a way as to expect anyone at all to agree with. It's not even a logically/semantically correct sentence, but really only makes sense if you read the book.