@extomar: nonsense. The soviets werent total isolationists. The daddy (or granddaddy, I forget) of Charles Koch made his initial wealth from contracts from - of all people - Stalin before falling in love with his libertarian guru Robert LeFevre [sp] Stateside. The screaming irony here is that the "father of libertarianism" in part stems from some Georgian asshole paying an American a lot of money to help set up oil derricks in soviet territory (sit down and take some time to take that in if need be). Said American subsequently turned tail and became an active red-baiter in later life during height of McCarthyism.
I didn't say they were isolationists but if you wanted to try a diplomatic stance for something, say the invasion of Afghanistan, your options where pretty much:
- Go to UN/summon ambassadors/etc. Get ignored.
- Actually put men and military and things into play.
Can you guess which one we did in the 80s? Can you guess how long it took to clean that up? Oh wait we haven't finished. Forget about Afghanistan this proxy war literally broke Pakistan which is still lobotomized from it.
Freezing USSR assets and denying visas wouldn't do anything because they owned little to nothing outside of the USSR and most ordinary people never traveled anywhere let alone to the west. Today Russia is much more tied into the world economy. The US and Europe can kill visas for Russians and that actually hurts Russians. Russians with money in accounts in other places can see them frozen and that actually hurts Russians. Steps already taken have driven the value of the ruble to drop. This stuff hurts in the way the powerful in modern Russia care about which is probably more effective than more proxy fights.