So you're saying there was global flooding in the past but the ark was allegorical? You also say that mankind began in the Middle East and spread to everywhere on the globe from there but the Tower of Babel was allegorical? Do I have that right? You realize there is not a lot of physical evidence for either.
What was God's role in all this? Did He send the asteroid and confuse languages to punish mankind?
First,
ding doesn't know science nor understand Archimedes Principle. There are hundreds of gigatons of ice melting at the poles due to warming cycles and no global flood. It's evidence for God as he promised no more global floods.
Second, Noah's flood was real and it happened around 2458 BC. None of Genesis is allegorical. It happened the way the Bible is written. Creation was in seven days. While Noah and his family were building the ark as instructed by God, he tried to get people to repent, i.e. change their minds, but to no avail. It's the same as with
ding and others here. They'll continue to believe what they want to believe.
With the global flood, it first rained for forty days and forty nights. During that time, the fountains of the deep rose up as mountains underneath the seas rose up and the water inside the Earth came rising up quickly. More evidence for God are the subterranean oceans that came forth. There is also some who believe there was a canopy of water in the sky that was created on the second day. This would add to the water. Eventually, the water covered the mountain tops and highest peaks. It covered Mt. Everest and the Himalayas because they weren't as high as today; they rose up as fountains of the deep. More evidence that the past was different from the present.
https://christiananswers.net/q-aig/aig-c010.html
Noah's ark drifted for 150 days while every plant, animal, and human were killed. The fact is a flood is one of the natural disasters that will kill the most people. More evidence for God. The God sent a wind to the ark and then for another 150 days the water steadily went down. Where did the water go? It went here --
https://christiananswers.net/q-aig/aig-floodwater.html.
Noah was instructed by God to send out a raven, which flew back and forth but could find no place to land. How did Noah know? It did not return. Next, he sent out a dove, which came back. A few days later, he sent it out again and the second time came back with an olive leaf in its beak. It symbolized peace. A few more days and Noah sent it out a third time and this time it did not return. It had found a safe place to live and that is where Noah headed. If you know about birds and their behaviors, then this is more evidence of God. Look up how Vikings used to navigate their ships.
Noah and his family ended up on land, but waited until God commanded him to leave the ark, along with his family, and all the animals. They had been on the ark over a year. As soon as he stepped on dry land, Noah built an altar of stones and offered sacrifices to God to give thanks. God made a covenant with Noah to never send another flood to destroy the entire world and marked it with a rainbow. Noah and his sons received the command from God to be fruitful and multiply. Before the Flood, people ate only vegetables. I suppose one could argue they were vegan, but not in the same context as today. After the flood, God gave Noah and his family permission to eat meat from animals. The water of the Flood symbolized baptism. Just as the Flood washed away evil and gave the world a fresh start, baptism cleanses a person for entry into a new life. This may hold to some who have repented, but sin remained and we are ending up like it was before. Will people become so evil that innocent people are in danger? I don't think so. We have nuclear weapons and guns to protect ourselves now. The danger will probably come from those who do not believe in God, i.e. without God, or end up being
like God in their thinking and attitude. The last part is just my opinion.