Hell, he fought Ozai while in the Avatar state. Maybe he should have just “accidentally” killed Ozai while in the Avatar state
Remember that he didn’t just enter the avatar state during the northern water tribe attack, he spiritually fused with the raging ocean spirit. I feel like that gives him a bit more moral innocence than just straight up killing people on his own. It’s also worth noting he almost did exactly this. After smacking his back on the rock and reawakening his avatar state, he barely regained control before straight up killing Ozai.
That said… I actually hate the way he solved his unwillingness to kill the fire lord. An entire season of struggling over it and then suddenly some deus ex machina lion turtle pops up out of nowhere with no foreshadowing and just gives him the answer right before the final fight. Super lame and unearned ending to his moral struggle imo.
I know, right? That’s why I should be allowed to wildly swing a machete around public spaces. Because limiting my ability to do so is tyranny!!! And kids should be able to bring grenades to school because we wouldn’t want to impede on their rights! Fucking /s if you couldn’t figure that out.
And your entire gun analogy makes zero sense. Regardless of anybody’s opinion on gun control laws, it is true that you will be able to better defend yourself against a bad guy with a gun if you also have a gun. But driving while you’re drunk will not make you any safer when the guy in front of you is also drunk. The two subjects are nothing alike.