You know the council of Nicea was called to specifically address the heresy of Arianism, right? Do you think all those bishops (under the authority of the bishop of Rome) actually got together and came up with a creed that didn't reflect the beliefs of the Church? I mean, read some of the writings of the early fathers, their writing does not conflict with what later became the Nicean Creed.

God from God, Light from Light, True God from True God. Begotten, not made, consubstantial with the Father. Through Him, all things were made.

This was already the belief of the early church. There was nothing new foisted on the early Christians. In fact, it was a miracle that the Church even MADE it through Arianism. It was a heresy which almost destroyed the Church.
And now you guys want to revisit it!
Might as well just become Muslim. At least they have a solid political structure, and you wouldn't have to work so hard.