Sorry, Truth_in_charity---but not all Catholics are uneducated.  We know that the church has changed over the centuries [a study of church history demonstrates that].  We have too many people who believe that what the last two popes taught HAS BEEN TAUGHT for 2000+ years.  WRONG!  

The church is comprised of people---human beings---who respond to the world that they live in---to the cultures that they live in---to the times that they live in.  Because it deals within that context---it isn't very objective.  Only robots can be totally OBJECTIVE.  BTW---the Council of Nicaea I was called by Constantine and it was dealing with questions on the very nature of 'Who is Jesus'?  Because it wasn't complete---a Council of Constantinople was called in 381, followed by another Council of Ephesus in 431 dealing with 'Who is Mary' and the burning question of the meeting---Did Nestorius get the shaft?  Many of the bishops were practicing and teaching Arians.