I'm interested about the atheists whom you brought to Jesus and what their views were beforehand. We they very against Christianity, or just indifferent to it before speaking with you? And what did you tell them to bring them to Jesus?
I agree with both of you, I don't think it's worth arguing with an atheist on the internet if they just want to show how much they hate Christianity and will never change their mind, but if they are interested and open to it it's a great opportunity to teach and learn more, and hopefully bring someone closer to God.
I'd have to write a book to answer your questions. But here are some keys I developed through prayer.
1. Ask an atheist this question: How did the Universe come about? Don't change one word of this question. Ask it that way.
2. If they answer "I don't know", then they are no longer an Atheist, they are agnostic. This will shock them.
3. If they answer "Nothing created the Universe", then they are creationists not atheists. Because "NOTHING" is now the creator with a name.
4. If they answer "The purple people eater created it", then they are creationists with a creator that has a name.
In other words, atheists have absolutley no answer to this question that justifies atheism, therefore, there is no athiest, and due to their ignorance not realizing they are in rebellion against God, and therefore their rebellion proves their belief in God, because if there was no God, there would be no atheist and judgment would not await them, God will remind them they knew God and rejected Him.
Atheists do not believe in absolute faith, yet it takes faith to not believe in God "ABSOLUTELY", or, blindly.
The Atheist does not believe in an everlasting place and believes all life comes from nothing, including themselves.
The Atheist is a "Nothing going Nowhere". This also shocks them.
How you use these keys to the benifit of Salvation is up to the wisdom God has given you. Don't try this unless you are equiped with Gods wisdom and have put on the full armor of God.
Be blessed