Russias pretext for the war is complete horseshit. They have been supporting the rebels in these breakaway republics that magically appeared just after Russia annexed Crimea in 2014. Their support went beyond the usual proxy war/hybrid warfare bs, as hundreds of russian armed service men were confirmed KIA in Donezk and Luhansk.
Also there's not a shred of evidence for the secret nazi government of Ukraine (led by a Jewish president) and Ukraines bid to join nato was 1. Years of not decades from its realization and 2. None of Russias business.