Just let them continue to beat their drum while the rest of the world progresses. Then they'll run like hell trying to catch up after about 10 or 20 years. Christianity is doing the most to make itself irrelevant in a modern world by clinging to ancient beliefs and practices. The more they bleat about homosexuality being wrong and evil the more society will see them as a bunch of deluded fools.
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.
