That sounds exactly like Putin's plan - change the EU regimes so they play nice with Russia and reduce the ability of Ukrainians to wage conventional war, it's btw the official version - demilitarisation of the Ukraine.

This is the real problem in the current situation - everybody is trying outplay each other by using different kind of force (military, economical) and nobody wants to sit down, listen to each other's concerns and try to develop some acceptable peaceful solution together.