I see no citations in the video description and I’m not too interested in listening to their argument if they can’t provide those citations up front. The only measure they seem to be appealing to in order to support their claim that “no one wants to live in Canada” is that Canada has lowered in happiness index. But, by that measure Canada is 15th in the world and USA is 23rd. So, if that’s the main reason to think people don’t want to live in Canada, then people really don’t want to live in the USA. On its face, that strikes me as exceptionally untrue.
Now I’m even less likely to watch the video. Panned over to 12:38. That is a pretty egregious error. Either they are incompetent and their opinions aren’t too valuable, or intentionally trying to mislead the now over 1.4million people who have watched that video. This seems like they tried to cherry pick a stat that bodes in favour of their argument and biffed it. Lots of people are still immigrating to Canada, so definitely far more than “no one” wants to live in Canada. https://www.statista.com/topics/2917/immigration-in-canada/