I don't like it one bit. A resurgent and repopulated Russia could really screw up our plans to find a new home for Capitalist Representational Democratic Western Civilization, if only temporarily, as we bided our time to flee what seems to be the inevitable "Zimbabwefication" of mother Earth.
An empty Russia in two or three generations would be an ideal place for us all to move once the transition to "Estados Unados" nears completion, and the final bricks to cement the European Caliphate are laid. And with such a broad swath of land as Russia possesses, we could probably replicate almost all the climates and landforms we were used to in our former homes. The only thing she lacks is a surplus of temperate seacoast. (Sorry gulf states&)
Furthermore, with the increased land space, our remaining friends amongst the productive classes of the UK, Europe, Australia, and Canada would have somewhere to go. Israel and Switzerland may need somewhere to run someday as well& And given the resources, (Assuming the American Left, and their counterparts across the world stay behind to "celebrate the mosaic", before they are consumed.) I'm sure we'd make much better use of the place than the Russians ever managed to.
And perhaps we could intentionally spread the Chernobyl remains along the borders southwestern frontier to keep the ME, the EC, and China at bay&