Technically they can, yes. Though I have yet to come across one who upholds the Augustinian view of Original Sin and the dogma of the Immaculate Conception.

A God fearing man is not a passive one. A God fearing man does whatever is necessary to secure his people from the evils of this world and the hellfire of the next, so that they (as a people) continue in their duties to serve God and join His Kingdom. A justifiable force is sanctioned to uphold the law of Christ and against anyone who stands in the way of the path to salvation. We must prepare now for our eventual return to God and save as many as we can until the last day.

Hopefully one day orthos like this will accept the Papacy, the Filioque and Thomism too.

— Deuteronomy 28

A year later, in 1799, following on from the Roman popular uprising, Sicilian peasants organised themselves under the Calabrian Cardinal Ruffo and took the name Sanfedisti in defence of the holy Faith. The Sanfedisti - Armata della Santa Fede in nostro Signore Gesù Cristo - drove out the Jacobins and their client rulers. "Brave and courageous Calabrians, unite now under the standard of the Holy Cross and of our beloved sovereign. Do not wait for the enemy to come and contaminate our home neighbourhoods. Let us march to confront him, to repel him, to hunt him out of our kingdom and out of Italy and to break the barbarous chains of our holy Pontiff. May the banner of the Holy Cross secure you total victory." - Fabrizio Cardinal Ruffo https://youtu.be/xid2_oEP5ho

Since the early 14th century, no one could be a teacher or student at University or College in Portugal without taking an oath to defend the Immaculate Conception as Dogma.

From 1648, denial of the Immaculate Conception legally deprived you of Portuguese citizenship.

“The faith of the Church is this: that one and identical is the word of God and the Son of Mary who suffered on the cross, who is present in the Eucharist, and who rules in Heaven.” ~ Pope Pius XII

"Her [Of S.Catherine of Siena] meditations would take the shape of imagining that all she prepared for her father was prepared for Our Lord, as by Martha; her mother was a symbol to her of Our Lady, her brothers of the Apostles, and thus she mentally ministered to all the Heavenly Courts, fulfilling her humble ministrations with an exceeding sweetness, because she saw God’s Will in each. Let this example, my daughter, teach you how important it is to dedicate all we do, however trifling, to His service." Saint Francis of Sales.

Quod Agni Immaculati

Muh Nazis were pagan