Come again?
Jude 1:7 Even as Sodom and Gomorrha, and the cities about them in like manner, giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eternal fire.
In Ezekiel 16:48-50 God compares Jerusalem to Sodom, saying “Sodom never did what you and your daughters have done.” He explains that the sin of Sodom was that “She and her daughters were arrogant, overfed and unconcerned; they did not help the poor and needy. They were haughty and did detestable things before me.”
Certainly threatening to rape angels was an integral part of why Sodom and Gomorrah were destroyed. It was impossible to find 50 righteous people in Sodom... it seems that there are many ways that the cities were beyond redemption.