Seeking the title of a short science fiction novel

She couldn't remember where she had seen it. It should be a science fiction magazine... I forgot the details... However, the story was roughly as follows: On that planet, all living things were born incomplete. Very weak…However, she had the ability to think independently. Furthermore, there was no gender difference. Once multiple individuals gather together... There would be an impulse to merge... Moreover, this desire was very strong, as if it was stimulated by hormones. And gradually lose self-consciousness. His self-consciousness was blurring…Lose... In the end, multiple individuals could combine to form a powerful creature. This creature could be disbanded or reorganized, and it had a single mind. In other words, the previous N individuals had completely lost their self-consciousness... I can't remember what the story is about, but there is a detail in the story that the protagonist (an individual) described in his heart when he encountered a large-scale group gathering scene... In the third person, he felt himself becoming blurry and gradually losing himself. And there was a strong sense of unwillingness…From the protagonist's point of view, the fusion was more like a plunder and rape of his body. A large number of voices and consciousnesses that did not belong to his personality appeared in his mind, tearing apart his original personality. Ask for the full text of this novel…