Through anyway they choose. That is a huge lie. Consider John 14:6 which is very clear:
Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
This means, lets just say, God is a lier, then Jesus is not the way to salvation which means not all ways lead to Heaven. So then that would posit that if Christ is right He IS the only way.
Marvel not that I said unto thee, Ye must be born again.
And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruning hooks: nation shall not lift up sword against nation, neither shall they learn war any more.