This board is hardly representative of the real world. People have all kinds of bizarre, uncommon views here. We used to have a guy who obsessively made thread after thread supporting beastiality. Yes, I am going to leave my opinion here and I don't live in bizarro world, so I'm not the one who needs to explain why it's bad. It's elementary, like I said. You're the one supporting something that is widely viewed as taboo and disgusting. It's a product of maladaption, abuse and/or mental illness. There is no healthy incest, especially between close relatives.
Also, individuals don't live in a bubble. What we do has wider societal effects. We do not need to be opening the floodgates to allow for incest, especially since history shows that when you give an inch, people will take a mile. The bar will keep getting pushed until we're allowing for all kinds of depravity. We're already at this point, hence why some people - who probably need to get offline for a bit - feel it's okay to seriously support such things. No, we need to keep the bar where it is. There is no compelling reason to allow or approve of incest. There's 8 billion of us, like
@Shaul said. You're not being deprived if you can't bang a relative. Plenty of other fish in the sea. I'm not interested in your ridiculous hypotheticals ("well, what if this...what if that.."). No. The end.
Honestly, I also don't give a toss what you think. I'm not a debate junky. This is just entertainment when I'm bored at work. Some things need to be said, though.