1) Since Popes have authority over discipline, any Eucharistic Liturgy they promulgate ---if it has the proper matter and form--- is by its very nature Valid and Licit.
No Pope is bound in disciplinary matters by previous Popes.
1) Popes have authority over discipline. The Liturgy is a matter of discipline. As such, changes in discipline are prudential judgements, and not necessarily protected by the Holy Spirit from error. However, since Liturgy is the primary means of catechesis in Faith and Morals, such changes are grave matters. And criticism of these prudential decisions is valid BUT can only be undertaken knowing that such criticism itself is a grave matter and should only be undertaken by those with a deep enough understanding of these issues that their criticism itself does not cause scandal or lead the innocent into schism or disobedience where obedience is due.
3) These are difficult times. Simply questioning and searching, honestly, does not make one a schismatic. Questioning the link between the current grave scandals and the changes in the Church since Vatican II and the promulgation of the Novus Ordo mass does not make one a schismatic, though some conclusions drawn may clearly and onjectively be incorrect.
5)Denying Papal authority over the discipline of the Liturgy does make one schismatic.
6) Denying the Novus Ordo is valid and licit and orthodox or that Pope Paul VI had the authority to promulgate it does make one schismatic.
7) Questioning the fruits of the Novus Ordo, the quality and quantity of its catechesis, and pointing out where and when it becomes illicit or invalid is not schismatic.
8) Questioning the prudential judgement of the Pope can be done charitably in some circumstances but most often lately such questioning has itself been imprudent.
For more see
Catholic Caucus: "Guidelines" re: discussions of Liturgy, other prudential decisions?Siobhan's post on that thread is pertinent too:
1) A Catholic Caucus on FreeRepublic should have a clear focus on fostering the Culture of Life vis-a-vis the political, governmental, and legal order in the United States. (This should be our principal effort on this forum.)
2) A Catholic Caucus on Free Republic should be absolutely loyal to the Pope and the Magisterium. Areas of concern (such as the confab in Assisi) should be discussed first with an eye to understanding the Holy Father's actions and teaching and second to look to the relevant Vatican congregation which prepared the event or issue of concern.
3) A Catholic Caucus on Free Republic should establish its own kind of "Neverending Story" Thread where Catholics, SSPXers, assorted sedevacantists and others can duke it out to their hearts content.
4) A Catholic Caucus on FreeRepublic should engage in direct Catholic action to oppose the lavendar mafia, Catholics for a Free Choice, Dignity, Call to Action, We Are Church, and any other AmChurch efforts or enterprises hellbent on destroying the Church.
5)A Catholic Caucus on FreeRepublic should respond to any issue or crisis facing the Church from the viewpoint of "building up the Church" and exposing sin, canonical violations, apostasy, and sheer evil.
6)A Catholic Caucus on FreeRepublic should post threads which build up our spiritual and devotional lives as Catholics and threads that educate us about the suffering, persecuted Church abroad.