Remember when samwise gamgee incited a race war?

Lol, she of all people would know that not all elves are wise. Looking at you, Fëanor, Maeglin, Fëanor, Thingol, FËANOR.

To be fair, she's only half elf. She's also half demigod... sort of giving her a bit of an outside perspective.
That's also why she was so frighteningly powerful.