In some of the Bible stories, the character known as God is abusive. This God starts out with a test that he knows that Adam and Eve will fail. He's constantly "smiting" people for disobeying him. Lot's wife looks back at Sodom and Gomorrah and gets turned into a pillar of salt. He makes a bunch of laws that carrying with them the capital punishment of being stoned to death. Then he has the leaders and the people carrying out the punishment.It sounds like an abusive relationship. Make believe person should get out of it
So, for me, what's more likely? That a real all-knowing and all-loving God did these things and made up those rules? Or the religious leaders of the community made them up? Including making up this vengeful, wrathful God? An invisible God watching the people that is able to punish them and even kill them if they do something wrong is a pretty good way to get some of the people to obey. And those that don't obey can then be punished or killed for their disbelief or for breaking one of the laws.
What I see that is difficult for the Baha'is is to make this same God the God of the other religions.... the Hindus, the Buddhists, Christians, the Zoroastrians, the Muslims and the Baha'is. Yet, the Baha'is are okay with rejecting the bloodthirsty Gods, of other cultures. Why not reject this version of God too as something made-up and believed in by an ancient people but not necessarily real.