I’m going to do a bit of an Odin Feels essay thing here, OK?
Ok. So, a lot of people hate on Odin Allfather, and I do too. He made a lot of really, terrible, bad decisions regarding Loki. But somehow when I think about the terrible choices he had to make, I sort of don’t blame him at all.
His main and first fuck-up was not telling Loki about his Jotun heritage, but when was he supposed to tell him?
When Loki was a baby, Asgard was still reeling from the Jotun war, and he knew that if anyone, any of the Aesir, knew about Loki or where he came from he would be viewed as some sort of sick war prize, or like an animal. Aesir have Jotun hate running in their blood. Odin was trying to protect Loki from that. So he didn’t tell anyone.
But then growing up, when should he have told him? When he was a child? and break his heart?
He couldn’t bring himself to do it. So it just spiraled, and spiraled deeper, and got out of control. It got away from him. He could never bring himself to tell Loki the truth.
But it was still wrong.
What he did was wrong, the situation is wrong, Asgardian culture, everything about this is Wrong.
Because it all goes back to their treatment of Loki, because, Jotun aside, they treated him like shit. Their culture prizes a warrior’s strength above all, so because of his magical gifts, and his different strengths, he is seen as sneaky and underhanded.
If they had truly loved him and praised him as much as he deserved, Loki’s reaction to the terrible awful truth of his heritage would not have been as bad as we saw in the movie.
Because with that knowledge, Loki attributes everything bad that ever happened to him to his Jotun-ness, especially when it comes to Thor and Odin. This is years and years of compounded and buried hate and inadequacy, and now he has a fuse.
Now he has a reason why.
And that’s another problem that goes back to Odin, because Odin loves Loki. They all live in a culture based on warriors and the pride of battle. Do you really think they appreciate men expressing emotions like that? No. So Odin never really showed Loki just how much he cared about him, even if Loki was not going to be king.
And that’s the kicker, they never intended for Thor to rule alone.

But they never told Loki that, did they?