I'm a humble newbie. Please read my long post. I am saying it's not bad really any more, I do not think. It is very bold of me to say, so here is my thing 'why' :x
Please, think logically instead of with your preconceived notions. I've read through three pages and it looks like old reports on people who hated homosexuality. Unnatural and wrong - what is this...? We have transcended the boundaries of naturality for the main. Our behaviours are learned and we live in situations built on artifice and machinery. How 'natural' are humans in reality? I wonder.
Think of it this way: if you have incest with a sister you get one bad effect which is that a lot of your genes are paired up with similar ones. If your sister had the same sickness as you had, your child would have it too. The same thing is true of any sickness you can inherit really, and it doesn't matter whether it is your sister or not. It's just more likely that your sister will have what you have - she is similar to you.
There is a lot of talk of people being emotionally stunted. What is this? I know many people who have had friends that are siblings until at least my age and I know others by hearsay that have had sibling friends for half a century. Because you did not get along with your sibling so well it is 'stunted' to associate with them solely...? Surely then if you have a close friend you are 'stunted' to marry them too - after all you have spent so much time, why waste more by spending your life with the person you have loved.
It is absurd. To date one's sister causes genetic problems if you have them already hidden inside of you. It would be true if you also dated someone that had that problem as well, that your child would be sick. You are broken inside. It is a problem with you, not your sister or your ability to love freely. No matter who you dated that had the problem, they would be bringing the same contagion to the child you had. Do not blame love for your sicknesses...
On the subject of 'screening' - I irrationally find it abhorrent. Yet in logic, think of it in this manner: each new life is a 'random seed' processed through the genetic code that creates through manipulations of structure random in addition to progressive changing. Each 'random seed' is not valuable more than another.
It is only a seed. Some seeds are poisoned. If I am in a world I have generated iteratively from the discarded remnants of previous worlds, and I choose not to enter it fully, I will discard it and search for a new one until I grow tired or am satisfied. Is this negative? Perhaps. I ever feel the irrational sorrow of one who has cast out its creation. But each world is no more or less valuable in the 'intrinsic' than a world you are satisfied with - it is the personal value that is undergoing kinesthesis.
The ability to see which seeds are poisoned, to recognize that data, is powerful. And though we may feel a passing regret for the epoch of our innocence, we cannot sacrifice power that would aid humanity for our scruples. Information is key.
Remember.
I ponder this. If I fell in love with my imaginary brother, should I falter? Should I languish? If I should be annihilated in my soul should I not be beside him, should I then stand forth from the gaze of desire for the sake of a construct of culture and empire? What value do I attribute to desire? And what value to the ethos of nations that I did not bring forth...?
We come to a new era of emotion. And if you say to yourself, "This is wrong" and condemn and outcast lovers, you will be damned and thrice damned if also were it in your power to condone and align yourself, should their cause be just.
In fifty or a hundred years, history will find itself a moment. And when we look back at this age, we will see the prejudices and etiosyntheses of our people in this universal nation. But while we wander and do not step forward, the chronicles of our age continue to advance.
While we deliberate, we lose ourselves like turtles wading out of time. And though we can speak bold words under the crouching phalanx of our collective incountenancy, we stand still while destiny moves on.
Ladies and gentlemen...
...history will -not- limp in catching up.