I think that it is fair to discuss the consequences of repealing the 2nd amendment.
The reason that you would do this is to remove weapons from the street, by Confiscation. There are many, including myself that would have NO intention of turning over my collection. So using statistics there are over 300 million guns in the hand of about 200 million gun owners. Lets say that 80% just give up and turn in their weapons. You still have 20 million people that are not going away quietly. If they averaged just one for one casualties when they came to arrest them and take their guns? You are talking about 30 to 40 million people killing each other.
Kind of makes the 600 thousand in the civil war look like a walk in the park.