At the bare minimum, if the US can bomb and invade countries thousands of kilometers away from its borders due to their alleged security interests we should take into account the probability that Russia as a nation-state follows a similar logic when dealing with a country that borders them.

It is not like the US is some kind of exceptional entity that have some special rights to act in certain ways that are verboten for other countries.

Which consisted of what, precisely?

in regions that historically were Russian before Lenin?

Are you suggesting that there's some magical, enduring quality to the Russian Empire's territorial claims? Is every place the Russian Empire managed to sit on for a while ipso facto "historically Russian" -- and we should just accept this description at face value?

And before these regions were supposedly "Russian" -- what were they? What kind of people were living there? What became of them?

Would you refer to Okinawa as "historically Japanese", or Algeria as "historically French"?

Enlighten us, please.