The Roman Catholic church did not come into being as we know it until about 600 AD and this has no bearing on Constantine's edict. To quote it in this context is disingenuous.
325 A.D. is when the creed that Jews had to take, and was written. Constantine beliefs, along with the thread of Catholics and Protestants I started, were the principles which Constantine attributed to and doctrines evolving from these people in the 1st, 2nd, and 3rd centuries. They created division. What do you think my forte is on this matter? I'm right in the middle and I am forced to be involved with division. Why should I stand for this falsehood? It's certainly not the gospel.