User blog comment:Mrlmm0605/Let's Talk Bleach! - Part 4: Yhwach/@comment-26091912-20150623050815

An interesting viewpoint. Though I would argue that: a cult leader seeks self-deification, and only has adherents to affirm that supposed status. Whereas the Quincy (particularly the Sternritter) literally live and die for Yhwach, so that he can continually absorb souls to prolong his own existence. Kubo could possibly be presenting a moral dilemma: Is it ever justifiable to kill others, so that you can live? Yhwach deliberately instigates war to the end of keeping himself alive, as opposed to vain ambitions such as: fame, glory, pride, etc. If he didn't continually absorb souls, he would revert back to his comatose state as an infant. (not necessarily be clinically dead).

The point I think Kubo was trying to make with Yhwach was, all creatures naturally want to preserve their life, though in Yhwach's case at the continual expense of others. Despite what he's doing is clearly evil, it's necessary for his own survival.