It's hard to convert a man when you are kicking him in the butt.
I'm not in the conversion business.
My job as a Christian is to spread the gospel. Conversion is up to the Holy Spirit.
He knows the gospel, he rejects it. I can do nothing about that. What I can do, is point out that he is rude and insulting to me, and should be to all Christians.
And I'm not trying to convert you either. I merely point out that your behavior was akin to his when you entered the thread with an insult towards believers.
It's hard to convert a man when you are kicking him in the butt.