Actually, in 2009 only 23% of U.S. oil imports came from Canada. Of course Canada does not give that oil to the United States. They sell it. In other words, a very large part of the Canadian economy consists of revenues from those sales. In that sense, we keep the Canadian economy running. In fact, 80% of all Canadian exports are purchased by the United States. That's how market transactions work. Mutual benefits are achieved; otherwise, those transactions would not happen.

The demise of the United States has been predicted many times, mostly by clueless fucks like Canadians. Yet, we are still here. Canada should hope we don't go anywhere.