Putting aside the fact that Jesus is now living, are you saying that He never imagined that Islam would ever exist and that His moral teaching was therefore deficient because of His lack of knowledge - and that He requires your assistance to update His moral teaching?
I find it amazing that you are blaming your own rejection of Christ's teaching on the supposed inadequacy of that perfect teaching, instead of on your own sinfulness.
Show me where he preached to Muslims. Who the hell are you to question my Christianity and to take my inventory you moral idiot?