To me, cancel culture is a behavior where individuals, countries or corporations decide to cut ties or refuse to do business with other individuals, countries, or corporations, usually informed by some popular opinion. It's a form of collective action.
The popular opinion doesn't even need to be correct, it just needs strong emotional appeal that motivates people to cancel.
You might be looking for the word "boycott", like old people used to call it.
You're probably right that the country "USA" doesn't get "sanctioned" much since they're the super power. Instead they use their power to punish other 'bad' performers. That said, Russia's government is totally worth 'cancelling' right now. Maybe the USA should have gotten some more push back for their failed wars, but Russia sure deserves it for this war; it's even more egregious than Iraq/Afghanistan.
I think you've got too big a bucket for cancel culture.
And what would be an example of a non-cancel culture, going by your definition?