Quote Sigh. There must be a hierarchy, but there need not always be a hierarchy with ordinary jurisdiction deriving from a Pope.

Where did you learn this, Ladislaus?
Vatican I: "3. So then, just as he sent apostles, whom he chose out of the world [39], even as he had been sent by the Father [40], in like manner it was his will that in his Church there should be shepherds and teachers until the end of time."
https://www.ewtn.com/catholicism/library/first-vatican-council-1505Pope St. Pius X: "43
Q. Of whom is the Teaching Church composed?
A. The Teaching Church is composed of all the Bishops, with the Roman Pontiff at their head, be they dispersed throughout the world or assembled together in Council."
The Teaching Church cannot defect, period. That is Christianity 101. There will always be a visible Apostolic Hierarchy in the Catholic Church.
Oath Against Modernism: " I firmly hold, then, and shall hold to my dying breath the belief of the Fathers in the Charism of Truth, which certainly is, was, and always will be in the Succession of the Episcopacy from the Apostles"
Successors of the Apostles are Bishops who have Succeeded to Episcopal Sees, viz Bishops with Teaching Office and Ordinary Jurisdiction.
Christ Himself would provide jurisdiction through the "color of title" ... according to the theologians cited.
Color of Title does not apply to a heretic anti-pope, although it could apply to a Catholic Anti-Pope. At any rate, this opinion is not held anymore after Pope Pius XII, the "last Pope" of the sedevacantists, expressly and word-for-word, precluded it. Christ does not confer ordinary jurisdiction on the Bishops except through the Supreme Pastor, the Vicar of Christ on Earth: "in exercising this office they are not altogether independent but are subordinate to the lawful authority of the Roman Pontiff, although enjoying
ordinary power of jurisdiction which they receive directly from the same Supreme Pontiff."[13] 40. And when We later addressed to you the letter Ad Sinarum gentem, We again referred to this teaching in these words: "The power of jurisdiction which is conferred directly by divine right on the Supreme Pontiff comes to bishops by that same right, but
only through the Successor of Peter"
http://www.vatican.va/content/pius-xii/en/encyclicals/docuмents/hf_p-xii_enc_29061958_ad-apostolorum-principis.htmlIn 1958, no less, the alleged year of the laughable supposed "interregnum" of the sede-vacantists.

It referenced two earlier Encyclicals. Here is Msgr. Fenton, and Cardinal Ottaviani, on that: "Prior to the issuance of this encyclical Catholic theologians had debated as to whether the residential bishops of the Catholic Church derived their power of jurisdiction immediately from Our Lord or from Him through the Roman Pontiff. In this docuмent, Pope Pius XII took occasion to speak of the Bishops' power of jurisdiction and he described it as something "which they receive directly (immediate) from the same Supreme Pontiff."[9] In the edition of his which came out after the issuance of the , Cardinal Ottaviani took occasion to state that this teaching, which had hitherto been considered up until this time as more probable, and even as common doctrine, must now be accepted as entirely certain by reason of the words of the Sovereign Pontiff Pius XII.[10]"
https://www.ewtn.com/catholicism/library/pope-pius-xii-and-the-theological-treatise-on-the-church-13700God Bless, everyone.