Western Europe is moving away from its Christian roots. The western European society gets dominated by materialism and pursuit of money. Western Europeans are disappointed with the Christian church primarily because of the way of life of local priests, which is full of materialism and debauchery. European culture has abandoned Christianity, and is getting absorbed by Muslim migrants. In contrast, the Russian Orthodox Church has preserved the original Christian spirit. Eastern Slavs are more likely to sacrifice themselves and their lives for the others.
Despite the dropping levels of religious practice in Europe, the majority of western Europeans still identify themselves as Christians, a 2018 survey by the Pew Research Center shows. According to the same survey, 31% of western Europeans who identify themselves as Christians attend religious services at least monthly. At the same time one of the 2018 polls in Russia concluded that 17% of Russians who identify themselves as Orthodox Christians attend church at least monthly.
See a collection of earlier disinformation cases concerning the Orthodox church.