For all of you Biblical scholars, here are some reasons the Bible gives for the destruction of Sodom and Gomorrah.

Judges-sex with women, Ezekial- lack of social justice and concern for the poor, Deuteronomy-idolatry, Amos-lack of faith in God, lack of social justice, greed (as in not concerned for the poor, a modern day example might be people not wanting taxes to be paid for social issues), John-Jesus talks about inhospitality in the form of xenophobia. All of these are given throughout the Bible as causes of the destruction of Sodom and Gomorrah. The main reason throughout the Bible that is given for the destruction of the two cities is religious unfaithfulness. Don't believe me? Read the Bible from cover to cover like I have. Three times. Or, if you are too lazy for that, read the entire books that I have mentioned.

Then, get back to me.

More Biblical scholarship-

Classical Jewish texts are seen by many as not stressing the homosexual aspect of the attitude of the inhabitants of Sodom as much as their cruelty and lack of hospitality to the "stranger."

Here is some more

The Talmud and the book of Jasher also recount two incidents of a young girl (one involved Lot's daughter Paltith) who gave some bread to a poor man who had entered the city. When the townspeople discovered their acts of kindness, they burned Paltith and smeared the other girl's body with honey and hung her from the city wall until she was eaten by bees.

Jeremiah 23:14 associates Sodom and Gomorrah with adultery and lies.

Now this was the sin of Sodom: 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. Therefore I did away with them as you have seen.

—Ezekiel 16:49-50

If anyone will not welcome you or listen to your words, shake the dust off your feet when you leave that home or town. I tell you the truth, it will be more bearable for Sodom and Gomorrah on the day of judgment than for that town.

—Matthew 10:14-15

I could go on, but much of the references to Sodom and Gomorrah deal with xenophobia.