More thoughts

For not all "Uniate" movements were the result of Catholic machinations. Bulgarian "Uniatism" was at least partly instigated by Constantinopolitan Greek Orthodox imperialism via-à-vis the Bulgarian Church. And the numerically tiny but by no means spiritually and intellectually negligible Russian Catholic Exarchate in Russia on the eve of the Revolution was a spontaneous movement from within the Russian Orthodox Church itself, largely among intellectuals and people of some substance, including several Orthodox priests, who were less than satisfied with the condition of their Church, reduced to little more than a department of the state since the time of Peter the Great, but refused to abandon their native religious heritage for that of Latin Catholicism.