This is true.I know for a fact, sodom and gomorrah people in the bible are nonelects.
Romans 1:24-32
24 Therefore God also gave them up to uncleanness, in the lusts of their hearts, to dishonor their bodies among themselves, 25 who exchanged the truth of God for the lie, and worshiped and served the creature rather than the Creator, who is blessed forever. Amen.
26 For this reason God gave them up to vile passions. For even their [a]women exchanged the natural use for what is against nature. 27 Likewise also the [b]men, leaving the natural use of the [c]woman, burned in their lust for one another, men with men committing what is shameful, and receiving in themselves the penalty of their error which was due.
28 And even as they did not like to retain God in their knowledge, God gave them over to a debased mind, to do those things which are not fitting; 29 being filled with all unrighteousness, [d]sexual immorality, wickedness, [e]covetousness, [f]maliciousness; full of envy, murder, strife, deceit, evil-mindedness; they are whisperers, 30 backbiters, haters of God, violent, proud, boasters, inventors of evil things, disobedient to parents, 31 [g]undiscerning, untrustworthy, unloving, [h]unforgiving, unmerciful; 32 who, knowing the righteous judgment of God, that those who practice such things are deserving of death, not only do the same but also approve of those who practice them.
For God said if there were any righteous He would not overthrow them.
But God overthrew them so they were not part of the elect.
At least at that time for years ago there might of been some that acknowledged God and somewhat of a moral base but probably not when other sins could condemn them like justifying war.
Eze 16:49 Behold, this was the iniquity of thy sister Sodom, pride, fulness of bread, and abundance of idleness was in her and in her daughters, neither did she strengthen the hand of the poor and needy.
Eze 16:50 And they were haughty, and committed abomination before me: therefore I took them away as I saw good.
Sodom and Gomorrah was involved in terrible wickedness other than sexual immorality.
Jud 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.
But it was them wanting to have sexual relations with the 2 men that went to Lot's house that sealed their doom which was part of the abomination they committed along with the other sins she committed.
People that say it was not homosexuality seem to be justifying it and will say it was because they were not hospitable.
But God is not going to overthrow the cities because of that.
God appeared in flesh with 2 of His angels.
He talked with Abraham and said if He could find any righteous He would not overthrow the city.
God sent the 2 angels in the form of men to test the city which He was giving them a chance and they stayed at Lot's house.
All the men of the city compassed Lot's house and said bring the men out that we may know them which is a term used in the Bible for when people have sex.
Lot offered his 2 daughters to them for sex and leave the men alone testifying it was for sex.
Not one person cried out let us not do this wicked deed but they were all in one accord agreeing to the act.
God knew there were no righteous there and the angels took Lot and his wife and 2 daughters out of the city and He overthrew it.