Atheists do not hate god any more than Christians hate unicorns.  A question atheists ask, though, is: Of the thousands of gods that humans have ever believed, why must one specific god exist while the gods of other societies must not? (See: Pascal’s Wager.)

Historically, gods may have become so culturally pervasive due to societal cohesion, rather than scripture.

Early societies had two main threats: internal lawlessness and external warfare. Religion motivated individuals to put societal needs first, including self-sacrifice for the greater good. The idea that religion evolved because it was useful for social structure hinges on natural selection for groups as well as individuals—a controversial concept.

Around 1750 BCE, the first known creation myth, Enûma Eliš, was carved into stone tablets by Babylonians, using cuniform writing. Their mythology tells of our origins in tales of Apsû and Tiamat, which predates biblical origins tales by 500 years or so.

Proving that Apsû does not exist is the same as proving that God does not exist. Fortunately, proving the existence of either God or Apsû is the burden of those who say they exist.