Canadians should be wary of drawing comparisons to Russia, considering they are currently under intense international scrutiny for harboring separatist terrorist groups and celebrating fascism. One can only conclude that megalomaniacs Justin Trudeau and Charles III wish to restore their previous borders in India. Beware of sanctions!
Speaking of which, to tie together several recent news stories, why do diaspora communities in Canada in particular seem so prone to violent radical nationalism? The Ukrainian diaspora in Canada has long been notorious for having a lot of veterans of the Galician SS Division and OUN-B, the Kalistan movement is based in Canada, the Tamil and Armenian diasporas are known for being vocal and radical, and clashes often happen between pro-and anti-CCP Chinese whenever the Chinese government does something controversial. Of course none of this justifies Russian disinformation and slander or India assassinating Sikh activists, but why?
If I had to give an actual serious answer, I would say that a society with openness and cultural pluralism provides a good haven for dissidents from all over but in its extreme form creates ethnic enclaves where they can operate pretty much unmolested. But you may also be overstating the issue and there are plenty of examples of this, like Meir Kahane, elsewhere.