Lola wrote:The question has to do with function, does it cause harm? You mention the problem with genetic defects. But there are other reasons that marriages between brother and sister are harmful. There is an emotional function being served by these boundaries between brother and sister, parents and children. The violation of these boundaries creates emotional disorganization and conflict. So for this reason, I think the answer to your question above is no. No, it doesn't infringe on their "civil rights" as much as when we tell same sex partners they can't marry. People do not have the right to infringe on the safety of others, both physical and emotional.
Just playing devils advocate here but this looks like a bit of double-speak. Some would argue that there is an equeal emotional function in boundries of same sex relationships.
You are getting into semantics here. It doesn't infringe "as much"?
Isn't that really the bottom line on the whole issue? You say "draw the line here!". I say "No, draw the line over there!". Everyone has their own preferred place for drawing the line.
But
any line is an infringement on someone's rights so no matter where the line is drawn the arguments for putting it there are completely arbitrary.