Self-hatred
Self-hatred was a feeling of hostility, anger, or disgust directed toward oneself.
In 2270, Kukulkan said to James T. Kirk, "I have been alone all my life. Destruction fell on my race before your kind had discovered fire. Creatures like these have been my only companions. I have seen you on many worlds. Savage, war-like, filled with self-hate, destroying yourselves in the end. At last I decided to help. As an experiment, I visited your Earth and tried to teach peaceful ways. I left, intending to return when I was summoned, but you never sent for me. Finally, I sent a probe. And what did I find? Warriors." (TAS: "How Sharper Than a Serpent's Tooth")