You disagree that Christ does not love sin? Are you certain you know who this Jesus happens to be?
Actually, Christ said that would never happen again.
No, He did not. He said he would not ever flood the world again, but He was very clear that similar would happen to others, just like Sodom (Deuteronomy 29:23, Isaiah 3:9 & 13:19, Jeremiah 50:40, 2 Peter 2:6, Jude 1:7)
Exactly, He said that He would never again destroy the world by water. He never said that He wouldn’t enact large-scale retribution (as during the Tribulation) in return for man’s open defiance and rebellion. Revelation gives app fractions of the numbers of people who will die during plagues and disasters during the Tribulation, and when it’s over, there won’t be many people left, comparative to the population before the Rapture and at th beginning of the Tribulation. And then Jesus, on his white horse, with the sword of His words issuing from His mouth, will kill many more who denied Him after multiple chances to receive His gift of love and repentance.