It doesn't matter if it's a crazy idea or not. The US simply would not permit Canada to align with Russia and would use military force to do so, and certainly before Russia had the opportunity to station troops in Canada.

Would the Americans' actions be 'wrong' from Canada's point of view? Of course. Would they be 'right' from America's point of view? Absolutely! That's the point here. Both sides are simultaneously both right and wrong, from each other's perspectives.

Once again, it sucks, but it is how it is.