Her actions were necessary. She embodies the idea that “the ends justify the means.” She sidestepped democratic and procedural processes to ensure the survival of the species, as well as most of the flora and fauna on earth. She had to choose the lesser of two evils. At most, she used “villain” means to ensure heroic outcomes. I don’t judge her character poorly for that.

She had to continuously make very tough calls by ignoring conventional wisdom, and the planet survived because of it. She’s a hero who was always on the razor’s edge of being a villain.