TBP wrote: "A lot of people have trouble believing in that (2/3 of mankind doomed)."
Nevertheless, that's what the Bible teaches. Whether man believes it's going to happen or not is totally irrelevant.
If nothing else, the fact that 2/3 (or more) are doomed should motivate us Christians to witness more.
Don;'t you think the notion of a benevolent, loving God who condemns two thirds of his own creation is silly on the face of it? I certainly do.