Another funny things on the right wing parties in USA and in Europe who think that Russia is guarantor of Christianity. Orthodox Christianity never reformed, it is backward, reactionary and stuck in thinking of the late Antiquity. It is not compromising nor interested in debate. In medieval times, Russians and Orthodox countries rather surrendered to Mongols that accept help from the West and confront their faith. There was this huge painting where we had under communist time in the text book where Alexander Nevsky surrenders to Mongols in exchange for protection of his Christianity against Catholic Europe. In 1415 Council of Konstanz several times had interest to unify Christianity after Schism in 1054. They even sent Czech missionary, Jerome of Prague to ensure equal treatment of the eastern Churches. Only Kievan patriarch was interested to attend. Numerous popes were interested in negotiation with Greek and Orthodox churches, but all these were never answered. Idealist from the right are as naive as the left was in 1920 who immigrate to Russia only to be shot or sent to gulags. Catholic church went through numerous reforms (Cluny, St. Benedict, St. Bernard, Schism, Lateran councils, and faced pressure from Reformation). Protestant Reformations are chapters on its own.
At any case, Russia has huge Muslim population with extensive birth rate from Caucasus to southern Russia to Central Russia of Tatarstan. More than 150,000 people in Russia died since 1994 when the war and insurgency in the south started. Much more than in Balkan wars and as much as in Syria. War with Ukraine and confrontation with entire West will wear out Russia. And the right wing want to side with totalitarian Russia for their own political ideology as the communist bastards in the past.