Laika you have your debate, just as you wished. The problem is your premise is flawed. I will not attack you or a straw man. I will attack your halfway thought out statements.
As has been mentioned here several times already, an Atheist's life has whatever meaning he or she makes it to have. If I want to spend my life collecting smurf dolls, I can do so. If I want to spend it feeding hungry people on the other side of the world, I can. Do you know why? It's because I've never even wondered if I can do something that can affect the universe. I don't care! Why should I? Can you, the believer do something that can have an effect on th universe? No. As I said before, even if there is a creator, what can you do for him? Listen to his chosen men who interpret his riddle book? Even if you could talk to god directly and everyday he had instructions for you. You followed those to a tee EVERY day of your life. You still haven't done anything to affect the universe. I don't know why you keep talking about that... Am I missing something?
I can add something to your flawed world view, it may help. A "good" Atheist's goals in life should and will likely be BETTERMENT. Be that betterment of himself, betterment of his family, betterment of humanity.. Whatever. He is not trying to please a sky daddy who won't return his calls, or waiting for him to solve man's problems.
You must agree that today, man's situation is better than ever. There's significantly less crime, less violence, less wars, we have ways to fight disease... The list goes on. While we to have new challenges to face, we are more prepared to take them on than ever. List today's great thinkers. The men and women who are working to cure diseases, help solve hunger, and making the decisions that will determine humanity's near and distant future. If you were to ask each person on that list about their beliefs, you WOULD find that the great majority of them are Atheists. That's not Satans work, that's being informed winning over ignorance. Hopefully every generation after this one is a little bit less religious, and more reasonable.