The atheist ethic of liberation:
If there is a God, I must do what God wants. If there is not a God, I can do what I want. There is no God and no accountability. I am free.
The religious ethic of liberation:
If there is a God, he can show us how to live in the best way possible. There is a God, and he sets us free from death and liberates us to do good. I am free.
If one is wishful thinking, it is just as logical to assess the other as wishful thinking. The fact that we wish something to be true certainly does not make it true, but the fact that we wish something to be true does not make it false for that reason. Desire does not negate the reality. The emergence of Atheism certainly came from a desire to change things by imagining there are no limits. But, how do we know that a desire to live without limits isn’t wishful thinking?