For some reason i have got an idea that Fuchsia bloods due to influence of their mom (two fuchsia and they must fight or everyone dies) on the trollkind evolution and societal conditioning end up being highly territorial towards eachother and have urge to fight them. So Jane is like a middle finger to all those things. Look, I have heiress that i don't have and don't subconsciously want to kill.

The fact that Jane is not a Fuchsiablood might indeed be one of the reasons Condy keeps her as a Heiress- No subconscious FISH SUPREMACY, I MUST KILL YOU feelings, which is something we know Meenah actually feels.