Sure, but I’m not saying it’s literally impossible for Kid to still be alive. I’m just saying that I think it’s more likely than not that he’s actually just dead. I mean would you genuinely argue that Vergo and Monet have a realistic chance of randomly showing up again just because their deaths weren’t explicitly confirmed?
Monet's heart was stabbed, and Vergo while not explicitly confirmed was still cut up into several pieces by Law with no one to help him get out before the explosion/poison gas got to him.
Those two are basically confirmed as dead. Kidd isn't. All he did was fall into the ocean, which both Big Mom and Luffy were saved from.
I dont think Loki would’ve beaten Harald directly. Harald like Dory and Brogy was brought back to his senses on his own for a reason.
If Loki could’ve killed him, oda would’ve made it clear by having Harald be defeated while mind controlled just like he usually does.
For one, Harald straight up tells everyone in the castle that Loki NEEDS to eat the fruit as he's the only person who can defeat him when he loses his mind and goes berserk on them. He tells them that Loki with the fruit is decisively above himself.
Two, Oda had him snap out of it before Loki killed him because he wanted to give them one last moment together before Harald was gone forever. It wouldn't have hit as hard if Loki never talked to him about Ida's death and about how they loved eachother before being forced to put him down.