1) In conscious level, everyone agrees with the principle of cause and effect that says a cause precedes every effect, and every effect is the cause for another effect/s
In subconscious level, everyone knows that if there is a cause for everything, then there a CAUSE (or a designer) for the principle of Causation also. And this CAUSE is more real than the principle of causation itself, just like source is more real than the resources!
Atheists are reluctant to personify that PRIMARY CAUSE as God because of the history of religions which became a synonym for greed and human rights abuse.
[Principle of Causation can originate only from a Master Designer who is altruistic as its primary objective is our own benefit.
a) A lazy student who prefers enjoyment to studies suffers his rest of his life; so is the case of a lazy man. Seeing the working of Principle of Causation in their lives and seeing their experiences, others resolve to be diligent and enjoy the rest of their lives.
b) Even Super Powers learn from Principle of Causation. Fighting many wars in the Middle East, America became tired. US President Barack Obama, announcing a shift in the Middle East policy, said a couple of months ago that it is better we try for friendly neighbors rather than fighting wars in the Middle East. This echoes the return to the age-old wisdom that a friendly neighbor is a better security than a costly war or a sophisticated war-machinery. This CAUSE produced a good effect: Iran expressed its willingness to open its nuclear facilities to international inspectors and start dialogue on even restoring Diplomatic Ties with the US that was broken in 1979.]
2) For what man spends MORE would reveal his actual belief. The amount spent on military expenses globally per head is more than the amount needed for day-to-day living of a person! Hence the basic quality of man is that he desires peace and security. But because of the fear of domination by other nations, humans unconsciously support war. This hatred of domination by others is the result of realization that we are all equal, and should not allow, at any cost, anybody to dominate us! This idea of equality (for which even Constitutions of all countries—including the UN Charter—are made) presupposes the existence of a Supreme Father. (Mathew 23:9)
3) It may be the illogicality of the portrayal of God (not the illogicality of existence of God) and the exploitation in the name of God that gave rise to many of the atheists. For example,
In the East, religions teach that we are all Gods (which would mean even a terrorist/pedophile is also a god).
In the West, religions teach that God had to murder the most innocent child of His to forgive the sins of some of his children (which means God is so bankrupt of ideas that He became the greatest sinner as to remove the sins of some people). And even after such a costliest act, still SIN rules as king over manikind!