That's incredibly sanguine. Russia has been annexing territory and this was a gambit to take a huge chunk by force. If they had rolled over Ukraine in weeks as many predicted they'd have pointed their guns at Belarus and Georgia and all the former satellites. Acquiescing is what we did to Hitler when he wanted the Sudetenland and he was not appeased by it.

I'd also cite John Donne and say "no man is an island". Our "country" exists as an arbitrary artifact of history. If you are capable of caring about people you don't know then it shouldn't matter if they're from another state or another country.