Fungi aren't animals. They also don't have a central nervous system and they don't feel pain.
also in most cases not killing the organism by eating a mushroom.
If you are sticking to the argument so cleanly, then perhaps you can stick to my answer, which is at the beginning and not the end of the response you are speaking of.
As I predicted, the purpose of this post was vegan debate, and my answer has been completely ignored.