To be clear, I'm criticizing the reflexive "gee we love immigrants, immigration is good!" attitude. The first part is kind of social signalling / fear of criticism, the latter part is simply not true beyond a certain threshold.

This is not a criticism of individual people or cultures, but more the idea that you can treat people as economic widgets and assert that bringing millions into an economy that can't support them... that it's somehow good... it's not. There are many TikTok / Twitter feeds from immigrants who are fed up with the quality of life and are basically sick of hearing how much Canada loves immigrants. It's a structural econ / numbers problem, not an argument based on "I don't like group <x> I want more of group <y>." We are literally at the much ruder point of "Fuck off, we're full" except it's the immigrants saying it now