Not really, because with or without abnormality it would not change my opinion nor the 100% poll majority of peoples opinion here - as long as the scenario in the poll exists, then the present law should be redrafted. How? I dont really care as long as it takes people rights into account.
Depending on how strong the incidence of abnormality is how I would react to the issue of pregnancy. However its a difficult subject, as controlling it begs the question about whether we should allow down syndrome/blind/disabled etc partners to mate, and again not an area I am comfortable giving the government the right to rule on..
Well for myself it does make a difference. If without fail
every child born to an incestous couple was severely disabled, then I do believe
an arguement could be made about reasons to control/prevent pregnancy or continue to have it illegal.
You say blind/down syndrome/disabled as an example, yet they also do not work under conditions that every child born to a parent with that condition will have a child born the same way. It's not constant, skips generations, whatever, fact is it's not a 100% fail thing. I always assumed incestous couples would breed severely ill children 100% of the time, so whilst you may find it means nothing to you to find out this isn;t the case, alot of people would feel more relaxed about dicriminalizing incest based on that knowledge.
Not accepting it, but removing the right of the state to interfere.