I'm aware of this made up story, yes. It's one of the most problematic stories in the Bible for me. It reflects so poorly on the God you believe in. I do not think God is a murderer who kills sinners. This idea that he's merciful because he no longer murders the world for sin is batshit insane and you are in an imaginary relationship that is abusive.
I can only believe in a God who is actually merciful and who is a Father who actually loves his children. Good fathers do not kill their children. If God is the way you think he is, I will not follow him.
Re:
made up story
Peter referred to the Flood as truth / real-life, literal event (just as Sodom). It could be well-supposed, that most of the persons to whom you ministered are familiar with Peter's reference.
2 Peter 2:
1Now there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the Master who bought them—bringing swift destruction on themselves.
2Many will follow in their depravity, and because of them the way of truth will be defamed.
3In their greed, these false teachers will exploit you with deceptive words. The longstanding verdict against them remains in force, and their destruction does not sleep.
5if He did not spare the ancient world when He brought the flood on its ungodly people, but preserved Noah, a preacher of righteousness, among the eight;
6if He condemned the cities of Sodom and Gomorrah to destruction,
b reducing them to ashes as an example of what is coming on the ungodly;
c 7and if He rescued Lot, a righteous man distressed by the depraved conduct of the lawless
8(for that righteous man, living among them day after day, was tormented in his righteous soul by the lawless deeds he saw and heard)—
9if all this is so, then the Lord knows how to rescue the godly from trials and to hold the unrighteous for punishment on the day of judgment.
You're all over the place. I'm very familiar with the Bible. I was a full time minister for 2 years. He can promise to deliver the Israelites and that does not erase the event that you believe in where he murdered the world. I suppose I can conclude you are having trouble reconciling this because you can't stick to the event in question.