God destroyed Sodom and Gomorrah because of widespread unnatural sexual activity between males

Not quite. He destroyed Sodom and Gomorrah because they had become so wicked that the violent rape of visitors had become acceptable.

Do you really think God would have spared Sodom and Gomorrah if it were women they were trying to rape?

human history and culture do not change God's opinion of sin.

No one ever claimed it did. The only one making a claim that the majority opinion ("common sense") matters in any way is you.

it is therefore safer, if there is some risk, to leave any fathering to men who have no sexual attraction to boys.

Sure, and staying home is safer than leaving the house. But unless you are living an agoraphobic lifestyle, you are obviously not living your life according to the kind of reasoning you want others to use for this situation.Making an intelligent decision requires more than just determining whether there is any risk; it also requires that you determine the amount of risk as well as the benefits and consequences.