I wouldn't call it cancel culture, it's something that doesn't really exist in Italy in this term. Read my comment here for some clarifications on how things really went: https://news.ycombinator.com/item?id=30644847
Maybe the term hasn't caught on in Italy but it sounds to me like the actual behaviour has.
Aside from the cancel culture term, I'd go even further and be clear. It's pure Russophobia, and it's no better than Islamophobia, antisemitism, homophobia, etc.