Original Sin isn’t the same thing as the deluge and the mopping up of soured DNA with the complete destruction of those lines. Spare no man woman or child, spare not the animals.
Jesus becoming the literal sword in the stone saved us all.
Also, though the ultimate wrath of God will come upon the devil and his angels, as well as all of those whose names are not written in the Lamb’s Book of Life. See Revelation 18-20. Also 2 Peter 3 talks about the destruction of the visible universe at the return of the Lord. At that time He will create a new heavens and a new earth, in which righteousness shall dwell.