No one knows who wrote the thing...therefore, it cannot be said it is a teaching of Christ.<quoted text>
Don't be silly. Yes, it's accepted today that Athanasius himself probably didn't write the Creed that bears his name. It's named after him because he staunchly upheld what the Creed says.
"A medieval account credited Athanasius of Alexandria, the famous defender of Nicene theology, as the author of the Creed. According to this account, Athanasius composed it during his exile in Rome...This traditional attribution of the Creed to Athanasius was first called into question in 1642...and it has since been widely accepted by modern scholars that the creed was not authored by Athanasius...Athanasius' name seems to have become attached to the creed as a sign of its strong declaration of Trinitarian faith."
Why would that be a problem? We don't call the Apostles' Creed "the Apostles' Creed" because we think somebody named "Apostle" wrote it. We don't call the Nicene Creed "the Nicene Creed" because we think somebody called "Nicene" wrote it (it was developed by the Council of Nicaea under Constantine), and we don't call the Pledge of Allegiance the "Pledge of Allegiance" because we think somebody named Allegiance wrote it.
No matter who put the words together for the apostle's creed, to my knowledge, every word is found in the Bible...it is the teaching of Christ..
We know who put together the Nicene creed...we know who wrote the Pledge of Allegiance...