My favourite part about the right winger's "but muh productivity" complaints is that it was a 2nd order data point that came from them not liking that Canada's GDP continued to grow despite them saying that economic armageddon was around the corner because something something Trudeau. They latched onto this because it allowed them to blame immigrants for GDP growth not cratering.
Which isn't to say that productivity isn't a problem in Canada, but a core part of the problem is the resource economy that owns Alberta politics. We peaked in our ability to efficiently extract shit from the ground decades ago, there's only so many ways to do that. So when you let multi national corporations come in and plunder your shit, you shouldn't be too surprised when they're taking that stuff and sending it elsewhere to create value added products (where it's cheaper to do so). The right wing would have been screeching about socialism or some shit if Ottawa had done anything but shovel tax cuts (which always go towards improving the business and hiring more people in their conservative utopia, and never towards stock buy backs) to try to drive value add to the natural resources we extract.
So the underlying truth is that there's no private financial argument for creating value added products here in Canada and the government needs to pick winners (and losers) and directly incentivize the creation and growth of value add industries (which I've been assured, is actually committing a socialism). There's lots of stuff to choose from that we should be making at least some of here. A Canadian arms industry (even if we're just white labelling Saab and SK designed products), medicines/vaccines, refinery capacity to produce more of our own finished petroleum products, pre fab housing, etc.