Russia is going to have an interest in nations with a large russian population.
Given that fucked up "rationale", our southwestern states would be part of Mexico and France will soon be a Muslim country.
I don't want to derail the thread, but my point stands. Russia is going to give a fuck about russians, in the baltics, the Ukraine, ect.
Even TRYING to stop that, will require a new Cold War, and there are no us interests involved to justify that.