Out of interest, what do you then call US leaders who reacted the way they reacted and continue to act when Castro took power in Cuba in an overthrow of massively unpopular US-supported dictatorship then? Or when he took USSR nuclear missiles?
That country didn't even have direct ground access to US, nor had been used as staging ground for assault on US heartland several times before in the history. Let me remind you of an obvious fact: all countries do things that Russia does and much worse when they feel their survival is threatened.
The best part is that you're massively anti-democratic with that statement - overwhelming majority of Russian people specifically support the current policy of Russia. Not the leader but his policy. Even pro-Western organisations doing polling in Russia are in full agreement with this. How would you feel about comparing US leaders to North Korean ones in terms of "sanity"? Because one could easily make the point that they are far more crazy. Whereas North Korean leaders are quite logical in their actions being driven by survival of their dictatorship in their country, US leaders are often driven by severely conflicting interests that end up hurting the country itself as they feud with one another.
Please remind yourself that "insanity" and "not being pro-Western" are only synonyms in propaganda.