The spirit is eternal, but eternal existence is not eternal life.
The only thing which can separate parent and child is when the parent’s presence in the child’s life does more harm than good.
The spirit is a product of our own choices. Thus it is not destroyed by external forces but only by its own self-destructive habits.
“The wage of sin is death.”
Jesus said, “Let the dead bury their own dead,” because even those who are physically alive can be spiritually dead.
It seems that we should eventually learn better. But that is only if we keep learning. It is demonstrable that people can refuse to learn. That is the essence of sin – choosing against life and learning.
Basilides was Gnostic. Gnosticism has poisoned much of Christianity. Jesus and Paul taught a gospel of salvation by the grace of God. The Gnostics taught a gospel of salvation by knowledge. Thus those teaching that we are saved by sound doctrine are Gnostics. Faith is the other side of the coin from grace. It means we never think salvation is something to which we are entitled. The Gnostics think that by knowing the scriptures and the teachings of their pastors, that salvation is one of their accomplishments in life. But Jesus said this was impossible (Matthew 19).
Science is objective observation, but life requires subjective participation. Religion is not science. It is life – subjective. And diversity is natural when it comes to the subjective. That Christians have different ideas about a lot of things only means they think for themselves. That diversity is a sign of life. Why would you imagine diversity of thought to be a bad thing? Uniformity of thought is not desirable – it is not life.