I was laughing out loud at this opinion. Seriously? World wide Canada is seen as a doormat to get into the US.

"Many of the world's most ambitious tech workers want to come to Canada"

More like "Many of the world's most ambitious tech workers want to use Canada as a doormat to get into the US"

Come on, we know how it works . I know many highly skilled tech workers in Seattle or SF Bay Area who have thriving and wonderful careees. Many from Iran, EU,  Asia who started off in Canada. Thanks to Canadian taxpayers they got their ESL, and US equivalent degrees and some work experience. Then they immediately went to the US which was their original plan. They all said Canada is so mentally oppressive and its mediocre branch plant companies lack ambition and competitiveness.   Added to that the Canadian government confiscates any wealth and profit that is generated.
 Now with Trump cutting corporate and personal taxes, there is no rational reason for any ambitious person to stay in Canada.