Macroeconomics is not the same as microeconomics. National debt is really just inflation. It's not like an actual debt that has to be paid or else the country gets repo'd or some shit. Inflation is a threat because it can lead to devaluation of the currency. Which means imports become more expensive. And then quality of life for the population decreases as a result. This is why Marxist-Leninist Cuba has a lot of poverty. They produce only $231.96 USD in exports per capita in a year. That is very low productivity. And so their Peso isn't worth wiping your ass with. They rely on a lot of charity from other countries just to maintain the standard of living they do have. Canada produces $15,477.22 USD in exports per capita. Our citizens produce 67x the export value per capita that Cuba does. Canada's economy is far more efficient than Cuba's.

And if you are worried about inflation, the last thing you want is more people, more consumption. Canada doesn't have any problems with production. We have a glut of labour supply. Tons of Canadians who are chronically unemployed are put down as "not in labour force" in Statscan. Our society doesn't need to breed or import more Uber drivers. We have plenty of those.