Motivations yes, how she went about it no. Having the few remaining humans do a sort of battle royal is not going to make them stronger, it will just cull most of them. And I absolutely hated how she just ended up making most people insane. Like when the villagers in the beginning started to have that dumb smile while clapping the priest I just cringed. Real cartoon villain vibes, which is such a shame for such an important character as Lilith, which is now gone forever since she didn't became a prime evil.