In addition to these physical problems, sexually transmitted diseases are rampant among the homosexual population. 75% of homosexual men carry one or more sexually transmitted diseases, wholly apart from AIDS. These include all sorts of non-viral infections like gonorrhea, syphilis, bacterial infections, and parasites. Also common among homosexuals are viral infections like herpes and hepatitis B (which afflicts 65% of homosexual men), both of which are incurable, as well as hepatitis A and anal warts, which afflict 40% of homosexual men. And I haven’t even included AIDS. Perhaps the most shocking and frightening statistic is that, leaving aside those who die from AIDS, the life expectancy for a homosexual male is about 45 years of age. That compares to a life expectancy of around 70 for men in general. If you include those who die of AIDS, which now infects 30% of homosexual men, the life expectancy drops to 39 years of age.So I think a very good case can be made out on the basis of generally accepted moral principles that homosexual behavior is wrong. It is horribly self-destructive and injurious to another person. Thus, wholly apart from the Bible’s prohibition, there are sound, sensible reasons to regard homosexual activity as wrong.
~ William Lane Craig