The author, columnist Dr. Firpo W. Carr asserts that: “God specifically targeted the cities of Sodom because of homosexual activity. (Gen. 18:20, 21; 19:24, 28) Instead of using HIV/AIDS, he nuked them. He used a purging fire to eradicate homosexuals and their diseases.”
This author is attempting to substitute the ethos of scripture for his own, and specifically to further his social-political position regarding "homosexuals" and a need for them to be "eradicated", by inferring that God wants’ to eradicate them because he did try to do so in Gen. 18:20-21 and 19:24-28.
If one posits that homosexuals are sinners, the "eradication" of sinners should not be our objective or call, and such an attitude in my observation often pushes people away from hearing the redeeming message of the Gospel of the Kingdom of God.
As for the authors interpretation of the scriptures he references from Genesis, we see (Gen 18:20-21 NIV): Then the LORD said, "The outcry against Sodom and Gomorrah is so great and their sin so grievous that I will go down and see if what they have done is as bad as the outcry that has reached me. If not, I will know."
The "Sin" in question is not identified by the text, neither in Gen 19:24-29. So, where is the author getting this? We do know that in context to the rest of the story, there is the scripture about the angels visiting Lot and some of the men in the town wanting to have sex with the angels, even rejecting Lot's daughters in their place (Gen 19:1-14), so we can determine that this was part of what was going on, however; looking at scripture in context with other scripture we find a more compelling and explicit agitating factor.
In this case, just taking scripture in context with other scriptures, we see that the authors statement is predicated on false premises, Ezekiel 16.49 gives us the proper context in why Sodom was destroyed (from the New Revised Standard Version):
“This was the guilt of your sister Sodom: she and her daughters had pride, excess of food, and prosperous ease, but did not aid the poor and needy.”
So, it appears, that in this case, the author is forwarding an interpretation of scripture not based on good exegesis, but of isogesis and personal social-political motives. Jus' saying...