Re: Scandinavia
I suggest you take a walk around Scarborough or Rexdale some evening. If you survive and post back, well done. The merit system was good in theory and for immigrants following normal channels it was successful. However there were many ways of side stepping it. Family Reunification Pathway, Refugee and Asylum Pathways, International Students Transitioning to PR, Temporary Foreign Worker Program (TFWP) and Low-Wage Labor Streams.
But these integration problems are not new, Kilburn in London in the seventies and eighties for the Irish, Longsight and Cheetham Hill in Manchester on the nineties for Pakistanis, etc. etc. It takes a generation or two for new groups to assimilate into the local culture, broadening it and eventually making it more interesting. Vancouver for all it's woes has some of the best multicultural food anywhere I have ever visited, same goes for Manchester (particularly if you like Indian/Pakistani anglicized food)
Canada in particular treated the decline in birthrates as an existential problem and treated it by mass immigration. Jumping from 271K for 2015 to 471K for 2023 it put huge pressures on housing, schooling and integration. Canada quickly* discovered there is some upper threshold beyond which immigration creates more problems than it solves. And to be clear I am not saying the number is zero. But equally 1.5 million newcomers in 2021-2023 in a was likely above the limit for a population of 40 million. (nearly 10% of the population in the last decade are newcomers**)
Immigration in and of itself is not bad, but large scale immigration without the appropriate structural backing and support is terrible. Add in zero planning or forethought and you have a recipe for disaster. I have a lot of sympathy for anyone arriving in Canada today from a foreign country, any foreign country, and hoping to make it by virtue of hard work and determination. For most it will be an awful experience in comparison to those lucky enough to be already in Canada and established. Cost of living versus low wage will mean most will struggle to escape poverty, a growing backlash in Canada to immigration means whatever xenophobia was naturally occurring is now amplified, restrictive regulations mean even if you managed to convert your degree or license to operate in one province you are restricted from operating in another.
*Admitting it took a while
**Depending on your timeline all non native people in Canada are newcomers :)