Canada dangles the carrot of permanent residence to international students to get more workers in various industries.
Some of the stuff you see on YouTube seems like they are on your side but really aren't. Companies want the division between local and international students. They want international students to have less pay and employment rights.
You have to protect international students from companies taking advantage of them or they will keep hiring them folks before locals.
The only way to defend good-paying jobs and employment rights is for all workers, local and international to be treated equally.
I posted this article below before but I think it is a good reminder of companies end game.
Shoppers Drug Mart 'volunteer' job posting was an error: Loblaw
Int students have the same rights and protections as anyone else working in Canada..
Most of the students that are working in jobs that are "taking advantage" of them.. are choosing to work illegally, for cash.. to avoid taxes and get around the max hours they're allowed to work... and in doing so are exposing themselves to "abusive" situations.