The anti-Russian claim that Russia is just Moscovia neglects that under Moscow
Russia became what is, by far, the largest regular country (or non-empire) ever to exist. (You could call Russia an empire, but it's in the same sense that the USA's 50 states constitute an empire: a country grown huge from expansionism on a continent.)
So the Eastern Euro Russophobes who say that only Moscow is Russia, and Kiev is the true Russia, are ignoring the fact that under ancient Kievan rule, Russia was a small player, while under Muscovite rule, Russia became the hugest country ever and a major world player.
And as a note, yes, there are multiple Russias, some people used to refer to them as "All the Russias," as in "Tsar of All the Russias" being one of the Tsar's titles
So the Eastern Euro Russophobes who say that only Moscow is Russia, and Kiev is the true Russia, are ignoring the fact that under ancient Kievan rule, Russia was a small player, while under Muscovite rule, Russia became the hugest country ever and a major world player.
And as a note, yes, there are multiple Russias, some people used to refer to them as "All the Russias," as in "Tsar of All the Russias" being one of the Tsar's titles