Sadly enough, for some people the whole idea of sex is very upsetting. For those people it may be the case that no matter what benefit the sexual content will bring, no matter how much money, happiness, artistic merit, love, tolerance, how many jobs, religious conversions, etc. sexual content in any and every form provides for others, it makes the aforementioned people brown their trousers.
You either just have to ignore them, lock them up, or help them with their crippling psychological problems. Rational arguments or incentives just may not convince the crazy.