Harley, this is false.
Perhaps you're not aware that the Nicene Creed came out of the Council of Nicea attended by Saint Athanasius who held what came from Nicea is Inflatable
"But the WORD OF THE LORD which came THROUGH the Ecumenical Synod at Nicaea, abides forever" (St. Athanasius, Ad Afros 2)
"But what is also to the point, let us note that the very TRADITION, teaching, and faith of the Catholic Church from the beginning was preached by the Apostles and PRESERVED by the FATHERS. On THIS the Church was founded; and if anyone departs from THIS, he neither is, nor any longer ought to be called, a Christian." (St. Athanasius, Ad Serapion 1,28)
Sounds a little overblown.