Why were Sodom and Gomorrah destroyed?

Ezekiel 16:49-50
49 " 'Now this was the sin of your sister Sodom: She and her daughters were arrogant, overfed and unconcerned; they did not help the poor and needy. 50 They were haughty and did detestable things before me. Therefore I did away with them as you have seen.

2 Peter 2:6
6and if He condemned the cities of Sodom and Gomorrah to destruction by reducing them to ashes, having made them an example to those who would live ungodly lives thereafter;

Jude 1:7
7just as Sodom and Gomorrah and the cities around them, since they in the same way as these indulged in gross immorality and went after strange flesh, are exhibited as an example in undergoing the punishment of eternal fire.

There is HOPE for homosexuals! Jesus even blasted certain cities of His day as worse than Sodom and Gomorrha, and indicated they would've repented given half a chance. He did state their "day in court" would be better than those who had seen the Light and yet chose to remain in religious darkness (Mat. 10:15; 11:2- 24). God condemns their spiritual preference as inexcusable. Their lust for man-made traditions was greater than their love for God's truth. Are homosexuals alone branded as Sodomites? Was that Sodom and Gomorrha's only claim to fame? Actually their sins ranged from downright snobbery to a lack of compassion; full bank accounts but empty lives. Obviously there was a great divide between the rich and the poor, but they all shared sin in common (Ezek. 16:49-50).
Their "anything goes" attitude and "do your own thing" atmosphere, reveals how low you can go. Their descent into depravity was undoubtedly hailed as a new era of "understanding," and their tolerance level for perversion praised as being "open-minded." So open-minded their brains fell out! Yet their DESTRUCTION is intended to dramatize the end result of living the wrong way. That warning message isn't only directed towards homosexuals (2 Pet. 2:6; Jude 7). God even refers to today's RELIGIOUS ESTABLISHMENT as "Sodom and Egypt..." - too PROUD AND STUBBORN to change (Rev. 11:8)! We're reminded that this affliction affects both young and old, high and low, rich and poor (Gen. 19:4, 11). Sin doesn't discriminate. Iniquity accepts all.
- Excerpt from God and the Gays: A Time to Heal (Chapter 5)