It has nothing to do with sin. These bigots are not theologians. they are misinterpreting scripture so they might find the thinnest veneer of legal cover for their bigotry. It has more to do with their attitude toward homosexuals than their deeply held religious beliefs.
It has to do with common sense and the laws of nature observable by all human beings with the means to reason objectively.
Homosexuality does not JUST 'deviate' from the human physiological standard, it deviates as far from the human physiological standard, as is humanly possible.
Add to that, that many of the advocates of normalizing that deviancy, flatly claim that such is not a deviation. Which is delusional...
Many of those among the cult who
do recognize the deviation, demand that it's not much of a deviation... which is again: Delusional.
And the cultists who recognize that such
IS an antithetical deviation, demand that the nature of human sexuality is irrelevant. Which is again: D E L U S I O N A L ...
Which is to say that those people suffer from an idiosyncratic belief or impression that is firmly maintained despite being contradicted by what is generally accepted as reality or rational argument, typically a symptom of
mental disorder.
And therein... rests THE PROBLEM!