You can choose to help others anyway you can, that is really all we can do that makes life have meaning. Atheism aids predatory behavior for there is only the law of the jungle as the basic truth.
That first sentence embodies the outlook and mindset of all atheists i know including myself. look up secular humanism.
If there is no God, there can be no energy, energy was created, but it could not have been produced from non-energy.
Likewise, God is energy, energy could not have been produced from non energy, thus God is energy that has no beginning and this concept is equally abstract as the concept that enery was produced from non-eneregy or the concept that the energy needed for the big bang always existed. So lets throw out what you said because it's an invalid excuse. Instead look at the failed logic of the concept of YHWH