I don't know that it is, but should people who don't believe in heaven feel insulted if you tell them that they aren't going to heaven?
I don't think that I would feel insulted if a Hindu insulted me by saying that I won't be reincarnated as a cow.
Heaven is specifically described in Revelations. Native Americans (Indians) might read the description of heaven in Revelations and decide that they would rather go to the happy hunting grounds.
Saved meaning via the God of the Bible.
The insult emotions youve brought into this do not make sense to me.
Reincarnation as a cow is not a Hindu's goal.
Hindus also have no problem admitting that other religions might offer their own ways to salvation/God/Heaven/etc. In the Bhagavad Gita, God as Krishna explicitly states that men come to him through many paths.
Some Hindus worship Jesus as a god among many - or as one way among many. I've read the New Testament and the Koran and I'm still not sure why Christianity and Islam have such a problem with the concept and insist on being considered the only right way.
Personally, I think it's all nonsense, but if you insist on believing, you might as well be tolerant about others' beliefs. If Graham actually said that Christ might not be the only way to salvation, kudos to him.