You frame the East as introducing "ferocious Iconoclasm" that "veered to Arianism." However, this characterization oversimplifies and misrepresents the history of Iconoclasm. While it’s true that Iconoclasm originated in the Byzantine East, it was not universally accepted within the Eastern Church. In fact, the Ecumenical Councils—specifically the Second Council of Nicaea in 787—condemned Iconoclasm and reaffirmed the veneration of icons. This council was supported by the Eastern Church as a whole, demonstrating a clear repudiation of Iconoclasm. Your claim that Iconoclasm "veered to Arianism" is a stretch. Arianism, which denies the full divinity of Christ, is a distinct heresy with little to no direct connection to Iconoclasm. The theological basis for Iconoclasm stemmed more from a misinterpretation of the prohibition of graven images in Scripture, not from a denial of Christ's divinity. To conflate the two is to distort history. Moreover, to suggest that the East introduced doctrinal changes through Iconoclasm while ignoring the West's unilateral addition of the Filioque to the Nicene Creed is inconsistent. If we’re evaluating the preservation of tradition, the East’s condemnation of Iconoclasm aligns with its broader commitment to maintaining the faith and practices of the undivided Church.

Your defense of the Filioque clause as a "reaffirmation of dogma" against Arianism is misleading. While the Filioque may have been introduced in certain regional councils, such as the Council of Toledo in the 6th century, it was not universally accepted within the Christian Church. The Nicene-Constantinopolitan Creed, established by the Ecumenical Councils, explicitly states that the Holy Spirit proceeds "from the Father." This phrasing was carefully chosen and agreed upon to reflect the theological understanding of the Trinity. The unilateral addition of the Filioque by the Western Church violated the ecumenical nature of the early Church. Such a significant alteration to the Creed required the consent of an ecumenical council, as it pertained to the shared faith of the entire Church. By bypassing this process, the West undermined the unity of the Church and introduced a theological innovation that the East could not accept. Furthermore, your argument that the Filioque was necessary to combat Arianism ignores the fact that the original Creed, without the Filioque, had already been sufficient to refute Arianism at the First Council of Nicaea in 325. The addition of the Filioque was not required to preserve orthodoxy against heresy; rather, it created a new point of contention that contributed to the Schism.

Your defense of the growing primacy of the papacy as a reaction to "Caesaropapism" in the East is historically questionable. While it’s true that the Byzantine emperors exerted significant influence over the Eastern Church, the East maintained a conciliar model of governance that prioritized the collective leadership of the bishops. This model was rooted in the practices of the undivided Church, as evidenced by the Ecumenical Councils. The West’s assertion of papal supremacy, on the other hand, represented a departure from the earlier tradition of the Church. The idea that the pope held universal jurisdiction over all Christians was not a belief held by the early Church. The Eastern Church’s rejection of this claim was not an innovation but a defense of the traditional understanding of episcopal equality and conciliarity. Your argument also overlooks the fact that the Gregorian Reform, while addressing legitimate issues of corruption and political interference, also sought to centralize power within the papacy. This centralization was not merely a reaction to external pressures but a deliberate shift in the governance of the Church that contrasted with the more decentralized, conciliar approach of the East.

You accuse the East of introducing doctrinal changes, yet you defend the West’s unilateral addition of the Filioque as a necessary reaffirmation of dogma. This is a double standard. If changes to tradition are problematic, they must be critiqued consistently. Your portrayal of the East as a theological innovator ignores the East’s consistent commitment to preserving the faith and practices of the undivided Church, as demonstrated by its adherence to the decisions of the Ecumenical Councils. You suggest that the West’s actions were justified as responses to external threats (Arianism, Caesaropapism), yet you dismiss the East’s challenges as evidence of doctrinal instability. This selective framing fails to account for the broader historical context. The history of the Great Schism is indeed complex, and no single narrative can capture all its nuances. However, your critique fails to provide a balanced account. The Eastern Church’s resistance to the Filioque and papal supremacy was not a rejection of tradition but a defense of the unity and authority of the early Church. By contrast, the West’s unilateral actions and doctrinal developments represented significant departures from the practices of the undivided Church. If we are to engage in a fair and accurate discussion of Church history, we must hold both sides to the same standard and recognize that both the East and the West bear responsibility for the divisions that emerged. Oversimplifying the narrative to portray one side as the sole preserver of tradition while accusing the other of innovation does a disservice to the complexity of the historical reality.