True but than they would still be an aberrant group!
Okay, so how would you prove they are an aberrant group?
Most Mormons I have known have a big issue with the Jehovah's Witnesses and are quick to assert that they are a cult. There are lots of JWs who will sincerely assert their testimony. Since the battle of testimonies would be draw, what strategy would you adopt to show the JWs they are wrong.