As a Russian I say you are completely wrong. The current crisis is entirely manufactured by Putin and his authoritarian needs, which are contrary to the actual needs of the Russian people. The Baltic states joined NATO in 2004, and there isn't much difference in nuke flight time between a launch from Latvia or from Kharkiv, so the entire premise that Ukraine potentially joining NATO somehow threatens Russia is a ruse. What's really going on is that Putin's popularity is falling, and he needs a) distractions b) to fullfill the imperialistic need that has been propagandized out of every hole for the last 15+ years (I.e the need Putin himself created), and through that increase his popularity. For some time the conflict in the eastern Ukraine served that purpose, but people's eyes and ears got tired of that, so he has to up the stakes. Also an endless conflict with a great adversary is a good justification to further limit the scraps of freedom that remain, and justify the poor state of the economy, arrest people for being "foreign agents" etc etc -- something that the North Korean monarchy has perfected.
>NATO should've been disbanded.
If that happened the Baltic states would have already been occupied by Russia, to protect the Russian minority of course. Nobody forced east European countries to join NATO, it's in their interest, it preserves their sovereignty.
America is imperialist too, but it's much more benign imperialism, focused on furthering globalism, democratic rule, and capitalists' profits. Russian imperialism only brings submission and authoritarianism -- the main narrative is sacrificing oneself for the imperialist rodina like the деды.