Nobody can prove the existence or otherwise of a creator. However, the evidence of the nonexistence of the Abrahamic god is pretty conclusive. Believers would argue that he is all goodness. But all the ancient texts that describe him are of a capricious, evil, vicious and unjust god who revels in revenge and other negative emotion. Further all those texts, even those he purported to dictate word-for-word, contain enormous scientific errors which is conclusive proof they were written by men who simply invented what they didn’t understand. No god would approve of slavery, or of inequality, there can be no “chosen people”, men cannot be superior to women. No god would care who you loved. No god would require or even want you to worship him. The only thing I could believe was that any god would want you to lead good lives and be kind to one another and certainly not kill unbelievers.