Mindchild,
It is really hard to reason with people who think in a bubble or box but I would deal with these questions with questions of my own.
1. If you don’t believe in Satan and his demons, why is there so much bloodshed, pain and misery in the world today in spite of the attempts of men to stop it from happening?
Why is there so much blood shed in the animal kingdom?
Is it because of Satan or because of nature?
Do animals sin?
If not then why won't they have everlasting life?
What makes us so special?
What makes you think that blood shed,pain,& misery have any thing to do with a wicked spirit being?
If you say the Bible then whatproof do you have that it is inspired by God?
How do you know that what we see going on in the world is not just nature in action?
2. If you don’t believe that God will destroy the wicked at Armageddon what is going to save the world from destroying itself?
Why do you believe that destruction would be the ultimate destiny of the earth without God's intervention?
What proof do you have?
I don't know if these questions would help but they are hanging out there anyway.
ChiChi