“Where precisely does Trent conflict with Vatican II?”
On religious liberty, ecumenism, and collegiality. Vatican II outlawed the foundation of historic Christendom, the Catholic state. Paul 6 ordered Spain and other Catholic states to secularize themselves in compliance with the errors of Vatican II. Now mosques are going up all across Spain (and the rest of once-Catholic Europe, ruined by Vatican II).
On religious liberty, ecumenism, and collegiality
>>Trent said nothing about religious liberty, nor ecumenism, or collegiality.
While Vatican II’s implementation did a lot of damage to the Western Church, it has helped Eastern Catholics return to our traditions and to attain equality, at least on paper, with Western Catholics.
Episcopal collegiality has been a part of the Church since the beginning. The fall of the Roman Empire in the West resulted in an excessive centralization that reduced the bishops to being vicars of the Roman Pontiff
I might remind you that Pope St. Gregory the Great forcefully taught against this notion when he condemned the title “Ecumenical Patriarch”.
Vatican II has been horribly implemented by bureaucrats who are not men of faith.
Spain’s secularization evolved out of a reaction to the Franco regime’s close ties to the Catholic Church.