text: ...."Other Christian communities must accept the fullness of truth that is found in the Roman Catholic Church."....
  
  Ah, yes. That's the attitude that will surely prevent any sort of "unity" from happening. 
  Catholics have seemed to learn to respect the various Orthodox Churches and just alloat they are what they are. Same with Judaism. Maybe even some non-Christian Religions.
  When people demand that everyone else has to capitulate and  "accept OUR fullness of truth" neither Unity nor Respect will ever happen.
  Wonder if there just might be something Roman Catholics might LEARN from other Christian bodies???