Good man for not following the ‘ideological line’! When somebody brings up Putin’s conspicuous faith, his personal life is decried. When Russia’s revitalised Church is mentioned, everybody calls it a sham. ‘Who am I to judge?’
Putin’s personal life is not our concern, but rather what he enacts in his capacity as leader.
With regard to war, neither side is innocent. Even in the short span from 2009 to the present-day, Western leaders have created a bloodbath out of the Middle East as a result of pre-emptive interventions/‘nation-building’ etc. Thus, without justification of either side, Putin hardly constitutes some sort of anomaly in work towards peace.
Once again, there are no heroes.
I cannot say what truly happens in Russia, since I am not Russian (I am Polish). There are ills in Russia, this cannot be denied. However, the west possess an equal share of evils, albeit relating to different problems. It comes down to a decision between two ‘evils’. As Christians who acknowledge the present transience and sinfulness of this world, this should be no surprise. There are no heroes.
As you have alluded to, western liberal (US, EU) leaders are not publicly Christian for the most part (modesty, perhaps

), and their largely policies act against the teachings of the Church. However, man is free in their system and enjoys material prosperity along with political rights. However, the Church is slowly being pushed out by the saecular forces of the liberal order. To summarise, in the west, Man is God and God has no place.
Russia has fewer freedoms, certainly fewer political rights and is not as prosperous. Mafia still possesses significant control, but is not as proliferated as it was in the 1990s. However, despite these problems, the Church has a significant public presence, and Putin is reversing the damages of the Yeltsinist laxity toward abortion through promotion of the family both verbally and through the creation of new awards/pensions promoting large families. This is exemplified by the minimal, yet stable rebounding of the ethnic Russian population after 1999). In Russia Man is sinful, perhaps obstinately sinful, however, he has enough wit not to usurp God. Such was the lesson of Socialism.
Both sides have their evils. That is not to be debated. However, since sin always will hinder utopian perfection in
this world, this should be no surprise. As Christians, we must be pragmatic and choose that which is more favourable to the Church and the rather than defending the utopian luxuries of earthly freedom and material well being.