Canada and Mexico have no reason to fear any kind of violent action from the United States. Poland, Lithuania, Latvia, and Estonia, on the other hand, have all been invaded and brutally occupied by Russia within the past 85 years.
85 years was a long time ago. Was there any Russian threat between 1991-2007?
If you hint that the very fact of the Russian existence is a threat then the Russians are going to ignore you.
Was Cuba in its right to install the Soviet missiles in 1962?
Was Russian occupation worse than Nazi occupation?
Were the Nazis preferred to the Communists in this region?
Certainly would help explain the rabid anti-Russian sentiment if its true.