Is this what passes for rational discussion in your area?
If we return for a moment to the earlier citation from Cyril, let me expand on the original quotation, to flesh out the context. Cyril advocates:
And for the present, commit to memory the Faith, merely listening to the words; and expect at the fitting season the proof of each of its parts from the Divine Scriptures. For the Articles of the Faith were not composed at the good pleasure of men: but the most important points chosen from all Scriptures, make up the one teaching of the Faith. And, as the mustard seed in a little grain contains many branches, thus also this Faith, in a few words, hath enfolded in its bosom the whole knowledge of godliness contained both in the Old and New Testaments. Behold, therefore, brethren and hold the traditions which ye now receive, and write them on the table of your hearts".
It is significant in the above passage that Cyril states that catechumens are receiving tradition, and he exhorts them to hold to these traditions – which are sourced in and derived from Scripture.