Cold Steel: "Oh, come on 'keet, what possible purpose can any person have if when they're dead, they're dead?"
We will have passed on to our children and their children our traditions, values, and our love. Scientists will have passed on their knowledge of medicine and other endeavors that have made so many of our lives better. Artists will have left their music and arts.
I don't "believe" as an article of faith that when a person is dead, "they're dead." I don't know for certain, and neither does anyone else, what happens after death.
Cold Steel: "And why should it be insulting? I spent an entire semester with a professor of philosophy quoting the most prolific atheist philosophers throughout history saying that everything man does is for nothing."
The Bible says the same thing about everyone, religious or not.