Canada has needed more workers but is suffering from a lack of affordable($675000 average when the average family makes <$110000) housing like many places with other costs rising too. The number of housing starts has never recovered from the huge downturn around 2010.
I dont mean minimum wage. I mean skilled trades and highly educated. Who is going to build the homes we are build 1/2 to 2/4 what we did prior to 2010. Who is going to work the R&D roles when the Canadians are all working
Wage suppression can be dealt with by making the wages for visa workers higher than some formula that takes local and national averages into account
There's no labor shortage there either. Go look at the Canada trades/jobs subreddits. Go look at the experiences of new grads who can't find an entry level job that pays a decent wage. Go look at how many kids want to enter the trades but can't get anyone to take them on as an apprentice. Software developers, engineers, etc. Even people with experience are out of work for months. Skilled laborers are sitting around with nothing to do because nobody is building houses.
Why do you think any Canadian grad who is able moves to the States? If we truly had such a dire labor shortage, surely they'd be able to work here and be paid well for it?
