Anyway I Think Uraume Is So Sweet For Being Sukuna's Support So He Doesn't Have To Interact W People - Tumblr Posts

why I love sukuna and hate Mahito.

They're both rly well-written characters, but Mahito's evil is on a different level, he was born from humans in the worst possible way. (same link as above, my interpretation of him)

Sukuna is a relatable, understandable character. He was an unwanted child - the fact that his mother carried twins (a bad omen) and sukuna ate his in the womb, but still could not undo the curse, tells me there was nothing he could have done to change his fate.

He fails to understand love (a common theme in the manga) and doesn't really have any hobbies, except for eating (which very often stems from loneliness). Sukuna isn't comfortable being close to people, except for Uraume (who keeps a respectful distance, approaches him carefully, and their relationship is extremely platonic. They're like a servant that Sukuna keeps around for cooking so well, and I think their calm, predictable demeanor is also a part of why Sukuna lets them in).

Sorcerers would seek out Sukuna in order to fight him, to test their own strength, and would always fail. I think he ate them as a sign of respect, maybe to grow stronger (maybe that's why he has so many random abilities) but I doubt he'd think of it that way.

Sukuna was outcast from a young age, knows little or nothing about his family, and the attention that he did get was a creepy, infatuated harassment. Yorozu might have called that love, but she didn't respect his boundaries or feelings.

So with no one to bond with, all that Sukuna had left was to live by his own whims for his own amusement. Imo he doesn't rly have a sense of honor or pride - he fought Gojo 3 against 1, keeps using pacts etc, and from the beginning said that Gojo would be the first person he kills. But soon after that targeted Fushiguro, and did kill many people in Shibuya.

He might have some sense of responsibility with Kenjaku, but I think that's for himself - to fight the merger would be better than sorcerers, something different and more challenging. They really don't seem to get along with each other, despite planning this over a thousand years (and pacts might be involved too).

Edit to add - this post with a far more in-depth analysis is worth reading