Why is addressing what you said directly "off topic"?
Yet others reject the idea that your quotes were "unambiguous" and your assumption that the only way someone can make an intertextual reference to another story is that they believe it literally true.
You have assumed a reference to Adam, Flood, etc. can only be interpreted as an endorsement of the literal truth of that event. This is obviously false.
How to interpret an intertextual reference requires you to consider genre, historical and cultural context, etc. yet you have deemed these "off topic".
What genre were the Gospels? What was their purpose? In the ancient world, when people wrote history, what was their primary concern: objective reporting of fact or using the past to construct a narrative pertinent to the present? Was there a difference between recent history and primordial history in the minds of people?
Others views are absolutely meaningless unless you and the so called others can document in the NT that the authors did not considered both LITERAL history, and the use of Genesis and the Pentatuch in allegorical and other non-literal uses of Genesis and the Pentateuch. I acknowledge both and you taand the nebulous 'others' take the extreme position of allegorical and non-literal is the only option.
The thread on the Church Fathers and other scholars views toward Genesis and the Pentateuch which will demonstrate that the dominant view of a literal Genesis and the Pentateuch is the foundation of Orthodox Christinaity in history.