I saw it and he did NOT say that about the Second Amendment. What he said was loathsome was the proliferation of guns in this country. He actually said that people have been arguing about gun rights for generations and that he understood that people have a right to keep and bear arms. He also said that the 2nd Amendment should be reserved for American citizens, not people like Cho.
You must have seen a different show than I did.
So, since criminals will always have guns, he would prefer that only criminals and the government has guns.