s0beit comments

There are some examples of it, but not many. And for good reason. Apart from the potential health risks to the offspring I find it quite abhorrent and morally reprehensible, personally.

Well, nobody cares about what you think. I personally find all forms of sex abhorrent and morally reprehensible, so I guess you should be banned from doing it by threat of jail time. Of course, I'm joking, but people think the same thing about gay people and they can get along just fine.

About the "potential health risks to the offspring", unless you fully support eugenics I don't see how you can be morally consistent. There's plenty of people who shouldn't be having children due to potential health defects, nobody stops them. The point is moot, anyway, when you consider that they can just use contraception. If they're legally consenting adults you have no place in telling them what to do.