How do these people justify killing non believers if you think your god made humans then will you not piss this god off by killing what it made
Sadly it goes even far beyond that. Many of the Christian churches teachings have involved the idea that this world is only a poor substitute for the one to come, and that therefore worldliness, including care for the environment and animals was anti-Christian, we should even welcome such things as global warming because they will bring the worlds end quicker. Early Christians often prayed for the worlds end. All of which leads to the obvious response. "How can you honor God by despising his creation." Human or any other. It is one of the central pieces of illogic in the theists thinking, and they can not honestly resolve it.