I'll respond to this part, because it misses one important part of Billy's subject.
( I think you're spot on with rest, which was when you adhered specifically to what Billy said, without additions )
Yes I tried not to add to what he said. However in your response, I believe you add to what he says. Let me explain:
Do you recall when Billy said these people of all religions, and included Atheists and Christians, are "called out" into the Body of Christ ? This means that they don't stay withing their current belief system.
I remember where he said that God is calling people out of the world for His name, but I don't recall him stating that it meant they no longer stayed within their certain belief system. He said they are members of the body of Christ because they've been called by God ... I don't see where he specifies they had to leave their belief system, or would. I don't see where he said one way or another in that video clip. I can see where it could be inferred, actually, that they DID stay in their specific belief system, based on all the things he said in that clip. If I already had an association that, "If someone is called by God and is in the body of Christ, they therefore are not any longer in their current belief system," I could see where one would infer that. But I could also say the same if someone equated "called by God to be part of the body of Christ" means they will inherit their own planets with Xenu, etc. IOW, I don't see where Graham specified. I think you are adding to what he's saying with your own interpretations.
As far as Christians go, it's self evident that many aren't currently in the Body of Christ ( even though they self identify as Christians ), and we know that no human knew Jesus by name pre first Advent. The process they went through to find Yahweh is the same as is available to all humans, now.
If this discussion delves into scripture support of your apologetic, I'm afraid we can't continue.
This is an absolutely critical point for me.
People, not just believers but people, often presume to ascribe meaning and definition to things which may or may not actually apply. I mean obviously. This is part of how we learn things, figure things out, etc. Nothing special there. With believers, this stands out in a very obvious way as it concerns concepts of God, interpretations of scripture ... but I've noticed it seems to go beyond the realm of the religious focus into presuming to know what others think, believe, mean by what they say, etc ... even though it may not be true and may even be refuted by the other person themselves. And furthermore ... it seems to cross a threshold of "I think this may be true, is it ?" and goes directly to, "I know what I'm thinking here is true, no matter what you say about it." IOW, it goes from recognized presumption, to recognized fact for that person. For example, take a person who says, "I'm an atheist." A believer may come back with, "That means you hate God," or "You must have no morals." And sometimes no amount of, "That's not true, let me explain why ..." may change that, or even behavior may not change that. If the person believes their presumption to be correct, it's almost impossible at times to correct. I don't know if you've ever worked with psych patients, but it very much reminds me such communication with a person who has become convinced that you are someone you aren't, things are the way they really aren't, etc.
This is critical for me, because I don't understand why it seems to apply so often to a believer. I can point to things like cognitive dissonance and projecting all day long, or "emotional/mental/spiritual" need ... but something is lacking. Do you notice this phenomena ? If so, what do you think causes it ? Do you think you are prone to it ? If so, what would make you prone to it ? "Interpretation" is a great example of this. Not just scriptural, but take what Graham is saying for example. I'm not trying to purposefully add to what he's saying ... and my own inferences about what he may actually mean or not are just that: inferences. I realize they could be wrong. I'm not stating definitively, "But he really means this and that." etc. I'm not viewing my presumptions as though they are clarified facts. Yet many a believer will come across that way, as though they are. So do you have any thoughts on this "phenomena" you may want to share ? For me, this is an important issue. I take it seriously, because as I dig deeply with some, I hit this floor quite often.