You are using the object of that Creed, a man you do not believe in, to illustrate your point.
Rather you are using an understanding of that object, which is other than what I accept, so you pose a dilemma that does not exist for me. You yourself say that Jesus did not sin, or was not capable of it as part of your argument.
You may well see Jesus solely and uniquely as the "object of that Creed" but, that does not make him ONLY that.
Jesus is an object of thought for millions (maybe billions) of people who each think of him differently.
Why do you or our Nicene fathers get to put the stopper on the bottle once for all time?