Burning thought
Restricted
Thats also arguable because what do you label as "meant to be"? Sex is used for procreation but it has a long list of reasons for it happening, love or lust are part of this. You dont get procreation without something along those lines since humans are not basic animals (most of us).
I dont know, maybe they will in thousands of years time, we have gay marriages and such and this was frowned upon. "judge" is based on as I said social concensus, if it was common for those things to happen across the world then the judgement of it being wrong woudl be considered falty. I just prefer logic over social concensus.
You claim its something inside of you, I feel the shiver of disgust on ones mother or sister but the fact is, people bypass that shiver and some things that make me shiver like same gender sex are perfectly viable in some cases or generally accepted.
It depends where you are, how you are raised because in some areas you would be considered weak or soft if you did not smoke or take a certain drug, this belief makes people, especially the young growing up in that area belive this and frown on people who dont believe it.
Hence why I say, the only real argument is the defects, just like how the physical problems you get from smoking are the best argument against it. You still have billions made from it all the time, and you still get people who think its "cool", just like how incest is "wrong". Concensus in an area.