You make a very powerful point. For a fact Jesus even asked a question involving this very matter where he says at Luke 18:8 "Nevertheless, when the Son of man arrives, will he really find this faith* on the earth?"
For a fact many who profess to be Christian are anything but. Hypocrycy marks their lives. Truly, Jesus would find much of this on the earth. But he also knew that there would be those who truly live in harmony with what he taught. Evidence of this is found where Jesus quotes Psalm 37:9-11 at Matthew 5:5 speaking of those termed righteous and meek.
Thus we can take comfort that there are those on the earth that truly practice Chrsitanity. Here is a link to some that do. Edit [Moderator]: Link removed