russia wanted to deploy forces in the USA's borders.
USA wants to deploy forces on Russia's borders.
I don't see the difference.
Yes, I was working with your premise! The parallelism as you see/state it.
You don't see a difference in what caused the crisis, right, sure.
THEN what happened?
In both cases, there was precedent for violating sovereignty. Bay of Pigs with the US, and Crimea with Russia, among other things.
But the US agreed to not invade again, and Russia on the other hand...invaded.
That's conspicuously not what happened with Ukraine. It could not be more not what happened with Ukraine.
Cuba makes no sense as an argument about current events, and if it did, one could have a conversation without random whatabouts.