Now you decide who is a genuine Christian. The ones that died are not but the ones that lived are? How about all that claim another worldview and survived. Following your reasoning to a logical conclusion God must favor their worldview also. Does God favor Hindu, Islam, Atheist etc..The Bible tells us that all of us are sinners and so the question should be why them and not us, but when you say that there were a multitude of "Christians" among them that died, what would you say constitutes a genuine Christian?
Keep it up, you are digging a big hole.