Of course Canada will open that window. It's how we've built this country and will continue to do so. Regardless of the xenophobic (including some inarguably childish)  rants on this comment board, thinking, engaged, voting Canadians know they have a government that has through our history built the Canadian economy through immigration, and will do so now, and including through the intake of refugees currently in limbo. And we'll see an uptick in skilled US citizens applying here - we'll  gain from that brain drain by expediting the cream of that crop into Canada, along with refugees.