It wouldn't "work out" for me at all, because I don't care.Yeah, go ahead and start your thread on Osiris and see how that works out for you.
But if you are going to insist, as you seem to be doing, that anything -- ANYTHING AT ALL -- which might be believed by some people, but which cannot be scientifically disproved must therefore be true, I think you are going to find yourself in something of a bind. Because then you are going to have to admit that a lot of things believed in other religions that contradict Christianity must also be true. And if things that contradict Christianity are true, by that reasoning, then Christianity itself cannot be.