Why should gods have to be something that exist or don't exist?
Not 'should', its a case of 'do, they either do exist or do not exist, no one is arguing whether they should exist or not.
A god, need not be proved to have a physical manifestation, but merely a representation of 'something'.
All the Abrahamic religions claim their gods to be incorporeal, having no physical manifestation.
And for these religions the idea that god is merely an idea is a anathema, a real existent god is central to their belief, no god means no afterlife, no morality and so on . . . although in reality I suspect you are factually right and it is just an idea.
Not 'should', its a case of 'do, they either do exist or do not exist, no one is arguing whether they should exist or not.
All the Abrahamic religions claim their gods to be incorporeal, having no physical manifestation.
And for these religions the idea that god is merely an idea is a anathema, a real existent god is central to their belief, no god means no afterlife, no morality and so on . . . although in reality I suspect you are factually right and it is just an idea.