It's a theological buffet. You can be a very liberal Universalist or an uber conservative White Supremacist and they, and everyone in between, is a Christian. The consistency does not exist. It is a religion of "anything goes".
How is being corrupt less corrupt when you're a Christian? Better at what, the self-deception that you're a Christian and corrupt and it's OK some how?
Good people help humanity. Bad people harm humanity. Religion doesn't make bad people good.
This is all fine and well if you say it to another believer. You all assume the same basic ideas. As an argument it's a complete failure BECAUSE of the assumptions that are not only not based in fact, they often contradict fact.
The basic notion of salvation as a literal concept is absurd. That God has to rape a moral women to have a mortal child that it will then use as a sacrifice to itself to redeem the very sins that God allowed to happen, if not deliberately create, is so Rube Goldberg. I suggest interpreting all these concepts, from the OT to the Gospels ONLY symbolically will actually be reasonable and be coherent to objective minds. It's the literalism that has created a complete divide for believers from reality to religious belief. Of course believers will side with belief because it is easy, and has the power of social pressure and conformity behind it. Reason is hard, it requires learning the skill of logic. It requires courage and self-reliance, the very things that Christianity wrings out of believers.