The attitude that GOD is evil is called “Maltese” in philosophy, and it is no coincidence that it is difficult to find serious philosophers who support it. This is because the consequences of this approach necessitate, as stated, the throwing of philosophy and logic itself into the trash.
Heroes — in their own eyes — occasionally defy GOD, accusing him of wickedness and injustice. But where did that sense of morality and justice come from? In whose name do they make claims against GOD? After all, it was GOD himself who assimilated into them. How, then, can one rely on a sense of morality instilled in us by GOD himself, to accuse GOD of immorality?
After all, if GOD is not moral, it is impossible to trust that the sense that he instilled in us does reflect true morality. Such people forget that GOD created not only the universe but also them, their mind, and consciousness. They imagine GOD as some evil scientist or super-villain, and rebel against him in the name of justice and morality, without considering that the very idea of justice and morality have been assimilated into them by him.
Well, if they trust their moral intuitions, it implies that the morality of those who gave them these intuitions must be trusted, and if they do not trust them, there is no room for any moral accusation against GOD.
The claim that GOD is evil contains a paradoxical internal contradiction and is therefore dismissed. Those who claim it are not attacking GOD himself but some twisted scarecrow they have created for themselves. Maybe it makes them feel moral and heroic–as long as they do not think about the origin of these feelings.