Atheist
a person who disbelieves in the existence of God or gods:
That really settles it right there.
There doesn’t need to be any further conversation, posts, tweets, videos, debates. Anything.
Atheists don’t believe in God.
What are things they likely believe? Questions they could be asked?
I’d start with does knowledge exist?
Is there an entity who possesses all knowledge?
Does good and bad exist?
Now what I believe they believe comes down to this.
They believe they are more good than God. They know bad things in the world exist. They judge God for these bad things. They believe they know more than God. They wouldn’t have designed the world how God has. They put themselves in a position where they know more and are more good than God.
Other questions I’d ask is what they believe is the point of the Bible. How does the Bible address the topic of belief. What does the bible say about knowledge. What is the definition of good.
Does the Bible say all people know of God?
Does the Bible say all people believe in God?
Are there stories in the Bible that show the importance or effects of belief?
Does the atheist not belief in anything? How do they know what they believe versus what they know? How do they know that they know anything?