A favorite quip of those who promote atheism is to say, "God has not given me enough evidence".
In a debate with Christopher Hitchens, Douglas Wilson addressed this excuse:
"Actually, I believe I can present evidence for what I know. But evidence comes to us like food, and that is why we say grace over it. And we are supposed to eat it, not push it around on the plate—and if we don't give thanks, it never tastes right. But here is some evidence for you, in no particular order. The engineering that went into ankles. The taste of beer. That Jesus rose from the dead on the third day, just like he said. A woman's neck. Bees fooling around in the flower bed. The ability of acorns to manufacture enormous oaks out of stuff they find in the air and dirt. Forgiveness of sin. Storms out of the North, the kind with lightning. Joyous laughter (diaphragm spasms to the atheistic materialist). The ocean at night with a full moon. Delta blues. The peacock that lives in my yard. Sunrise, in color. Baptizing babies. The pleasure of sneezing. Eye contact. Having your feet removed from the miry clay, and established forever on the rock. You may say none of this tastes right to you. But suppose you were to bow your head and say grace over all of it. Try it that way.
You say that you cannot believe that Christ's death on the Cross was salvation for the world because the idea is absurd. I have shown in various ways that absurdity has not been a disqualifier for any number of your current beliefs. You praise reason to the heights, yet will not give reasons for your strident and inflexible moral judgments, or why you have arbitrarily dubbed certain chemical processes "rational argument." That's absurd right now, and yet there you are, holding it. So for you to refuse to accept Christ because it is absurd is like a man at one end of the pool refusing to move to the other end because he might get wet. Given your premises, you will have to come up with a different reason for rejecting Christ as you do.
But for you to make this move would reveal the two fundamental tenets of true atheism. One: You say There is no God. Two: You hate Him.