Actually the Messiah kills all who are against Him upon His return but He and His armies are the only ones able to do so. We cannot see the seal of God on those who go through the tribulation and we are to be servant as Jesus was when He lived here. He is not the servant alone anymore but on the throne as just judge. Until we stand before that throne and get our rank in the holy army, we are civilians.
You went way beyond the scope of this discussion.