Is it normal to see christianity as an immoral position for this reason?
There are two gods described in the Bible Yahweh and Satan. Yahweh says that Satan is evil and wants to harm us. Yet there is no physical evidence of this and Satan has had no chance to give his testimony.
Keeping the modern concept of innocent until proven guilty in mind. Christianity would be choosing one god over another and essentially condemning Satan as guilty without evidence or even getting to hear the other side of the story. Judging someone like this, to me, appears to be fundamentally immoral and foolish.