Scripture is far from alone in condemning sodomy. Every western society since the beginning of societies has condemned it, many before there was any scripture at all. Condoning it, of course, is another story; but even then, only the elite got away with it. And apparently condemning sodomy (even as only part of the natural law ethic) works: western civilization outpaced the rest of the world in every measure of progress.
Scripture is far from alone in condemning sodomy.