It appears to me that this young man has committed a common logical error. He assumed God’s nature was a certain way, and then, when confronted with evidence that He was not like that, concluded that God didn’t exist.
One day he will come face to face with the God that he now says doesn’t exist. Prayers that he will come to know Him
I've noticed that myself. I was listening to a recent episode of Catholic Answers entilted, "Why are you an atheist?" The callers are almost always hostile, cranky, belligerent and prideful, but Trent Horn, the apologist, is remarkably patient.
The first caller claimed that "scientists have studied the universe and math and haven't found any evidence of God. What do you say about that!"
Where do you begin?
The apologists first had to explain the nature of God, that God isn't "out there" in some part of the universe.
It's not uncommon for atheist callers to say that Christians believe God to be an old man sitting in the clouds.