First of all, it is right that Nezha cannot be deified when he commits suicide. After all, Nezha didn't do anything but get into trouble at that time, so he shouldn't be deified. At that time, Nezha was still young and had not participated in the cause of overthrowing Shang Zhouwang's rule, so Nezha could not be deified at that time. Besides, Nezha made too many mistakes and had a lot of contradictions with his father, Excavate, so he chose to commit suicide. So Nezha's suicide is of little value. It's sheer nonsense. Naturally, it cannot be deified.
Secondly, Nezha was born with a mission, but he lost his body before the mission was completed, so Taiyi must help Nezha rebuild a body. Nezha was reborn as a spirit bead. His mission is to help the Zhou royal family overthrow the rule of Shang Dynasty. However, Nezha, the great cause of overthrowing Shang Zhouwang's rule, has not been completed, and Nezha can't die of natural causes, so Taiyi wants to resurrect Nezha.
Taiyi real person will save Nezha, besides letting Nezha complete his mission, there is another reason, that is, Taiyi real person is too justifying a fault, and he will definitely help Nezha to be reborn. On one occasion, Nezha was naughty and killed the apprentice of Queen Shijie. Nezha should have been punished. As a result, Taiyi not only forcibly protected Nezha, but also returned the Queen Shijie to her original form. Is this enough to see the reality of Taiyi? Defend yourself for your mistakes? Character. So at that time, after Nezha committed suicide, Taiyi's real person would bring Nezha back to life anyway. After all, in Taiyi's real heart, Nezha's apprentice status is still very high.