What you are suggesting is heretical.
How so SJB? Popes such as Pius IX and Pope St. Pius X recognized that modernist heretics were making inroads into the Seminaries and such. It didn't mean that any of the Pre-Vatican II heresies were actual teachings of the Church because none of the heresies were ever declared infallibly by the Popes. They were only promoted by heretical theologians and seminary professors.
The power to teach and to rule does not reside directly in the theologians and seminary professors, they are auxiliaries of the Bishops.
The Teaching Body is a living organism, and consequently has the power of producing auxiliary members to assist in its work, and of conferring upon them the credentials required for their different functions. These auxiliary members may be divided into two classes: (1) auxiliaries of the Bishops, and (2) auxiliaries of the Chief Bishop.
I. The ordinary auxiliaries of the Episcopate are the priests and deacons. They receive their orders and their jurisdiction from the Bishops, and hold an inferior rank in the Hierarchy. Their position as regards the office of teaching, though far below that of the Bishops, is nevertheless important. They are the official executive organs of the Bishops, their missionaries and heralds for the promulgation of doctrine. They have a special knowledge of doctrine, and they receive, by means of the sacrament of Holy Orders, a share in the teaching office of the Bishops, and in the doctrinal influence of the Holy Ghost. Hence their teaching possesses a peculiar value and dignity, which may, however, vary with their personal qualifications. Moreover the Bishops should, under certain circuмstances, consult them in matters of doctrine, not, indeed, to receive direction from them, but in order to obtain information. When we remember the immense influence exercised by the uniform teaching of the clergy over the unity of Faith, we may fairly say that they participate in the infallibility of the Episcopate both extrinsically and intrinsically: extrinsically, because the universal consent of all the heralds is an external sign that they reproduce the exact message of the Holy Ghost; and intrinsically, inasmuch as by their ordination they obtain a share in the assistance of the Spirit of Truth promised to the Church.
When and where necessary, the Bishops have the power of erecting Schools or Seminaries for the religious or higher theological education of a portion of their flocks. The professors in these institutions are auxiliaries of the Bishops, and are, if possible, in still closer union with the Teaching Apostolate than the clergy engaged in the ministry.
What is heretical is the idea this unorthodoxy came from the Church and NOT Her enemies. You have confirmed this heretical idea, humble man.
Let me make it clearer for you SJB. When we speak/say
the Church, we take into account Her
human element. As our history has shown, within the minds of this human element error/unorthodoxy/heresy has been/will be born. Error(s) born in the mind of Arius engulfed the Church to such an extent that it is valid and not heretical to say that the majority of
the Church was Arian. Of course this needs for one to understand that when speaking of error/unorthodoxy/heresy in terms of
the Church, we are speaking of the human element in the Church.