No it wouldn't.
Itchio makes the distinction between pornography games which glorify incest, rape and child abuse etc - and narratives which touch on them in ways which are not glorification. I would like to observe with a heavy sigh that this is shown to be true in the fact no payment processor has ever banned the bible.
Context and framing matter. Its incoherent to discuss content divorced from context. Le epic social media quip you are parroting is a weak attempt at a gotcha, and you will not receive your reddit gold.
Edit: The bible is a bad story which glorifies incest, and worse. Incest glorification is part of the christofascist project. I believe that christofascists are capable of hypocrisy and successfully policing their hypocrisy by noticing context. Context and framing are things all human brains recognise, even those filled with christofascist worms, nobody analyses content without context. Hashtag Ban the Bible.