You are confusing events with their meanings.
No. But you are confusing the meaning of the events with the account of the events.
Consider this description of yours.
"Redemptive history", for our purposes, can be seen as two parts - 1) the events, and 2) what they mean.
I would say this is incomplete. We have 1) the event, 2) the meaning of the event, and 3) the account of the event.
Evolutionists discount 1 and only say 2 is real. So, as a whole, the redemptive history of Gen.1-11 is not seen as real by evolutionists.
Not quite. Evolutionists say the event as well as the meaning of the event is real, but the scriptural account of the event is not identical to the history of the event. (In fact, if we had only the history of the event, we probably would not have the meaning of the event. Attributing meaning to an event is itself an act of faith.)
The tortoise and the hare. The meaning is basically warning against complacency and that perseverance pays off. This is understood as a "real" concept. Does that make it a real account? No.
Well sure, it is a real account. But it is not an account of an historical event. (Or are you limiting the meaning of "real" to physically/historically real?) Every story is a real account.
The question is not about the reality of the accounts, but the reality of the events of redemption history. We have reasons to doubt that a tortoise and a hare ever had a race. This is a story told only for its meaning. Similarly Jesus' parables (though more "true to life" than one of Aesop's fables) are told for their meaning without any necessity that they be historical events.
But one can also have a story about an actual event. And the story may be simply a report of what happened, or a story that unfolds the meaning of what happened.
What we have in scripture are stories about real events, but which do not depict the events as they happened in history. Rather they focus on the meaning of the events by narrating the event in images and symbols.
The event is factual. The account of the event is figurative. And the meaning of the event, as revealed in the account, is true. And all three are, each in their own way, "real".