So you do believe t hat there is a right to incestuous marriage between siblings and parents and children. How about polygamy as practiced by the various Mormon heretical sects?
I answered the incest question earlier. DFn't have time for repeats. It's not my responsibility to justfy who can get married. It is your responsibility to justify whom you want to restrict. That's the way a free society works. We limit governmental power and don't let the majority vote on rights.