Just as a rebuttal, I don't have student debt and get plenty of vacation time, and my employer has pretty amazing health insurance. Not everyone is lucky this way but I personally would never move to Canada for a tech job and don't know anybody who has done so, while I have definitely met many Canadians who have moved here.
The Canadian and US labor markets are pretty interconnected so in my opinion these companies are going to have to start raising salaries if they really want to get talent. I feel like I read something on HN every week bemoaning the Canadian tech industry, when most of the problems have a pretty simple solution: pay more. Of course, that's easy to say but not necessarily easy to do financially.