So yeah, you're redefining vengeance by making it tied to who is getting revenge. I'm sure Donald Trump would say his vengeance (which he has taken on many opponents, often using the machinery of the state to do so) is different, too. As I pointed out in another post, the idea of gods and goddesses taking vengeance on their enemies predates Christianity and is really a remnant of the time when Yahweh was part of a polytheistic system where deities were treated as being quite human in many ways. You're just trying to modernize the idea of divine vengeance to justify the idea in an age where such deities no longer fit. And believe me, the folks who blame "sin" for natural disasters or terrible things happening to people don't see God's vengeance the way you do. They very much see it as the work of an angry God punishing the world for not playing by God's rules, which makes it morally no different from an angry human doing it for the same reason.
(God as the cosmic Donald Trump both scares and amuses me, by the way)