you lack the capacity to imagine the possibility that someone can live differently to the way that you see the world. Your words convey your thoughts, and those words state that malicious metal is not an adult, or does not live like an adult.
This is considered a failure as a human because if the words that you chose truly do describe the way you feel on the issue, it means that you can't even comprehend the fact that people lead complex and different lives.
Specifically it means that you have an incredible issue with empathy, which is one of the fundamental parts of humanity, and thus, you are a failure of a human.