That being said, I don't think there is any evidence that survives scrutiny that immigration has been a net positive for any western country, and if I take Norway as a specific example, we have good data that immigration has been a net negative [1]. And furthermore we have the peculiar problem that whenever a statistic does show that immigration has a net negative effect in Norway, that the government rapidly stops collecting the statistic as a mere coincidence [2].
I think we could potentially change our immigration policies so that immigration becomes a net positive, but I'm not interested in that. I just want it to stop.
The people who sold mass immigration as being an economic benefit did not actually ever care about the economy, they just thought it's the easiest way to convince people, and they have already pivoted to other reasons for supporting mass immigration because the thing they want is the mass immigration and the resulting consequences.
The people who sold mass immigration on economic grounds also never had any real data behind their claims that it is economically beneficial, and institutions like universities, media, entertainment pushed the unfounded claim uncritically, like good little soldiers, and then retroactively worked as hard as possible to only ever paint it in a positive light and to dismiss negative consequences.
The result in me is a complete distaste for the very idea of immigration. I just want my country back.
[1]: https://www.nettavisen.no/nyheter/her-er-ssb-forsker-holmoys...
[2]: https://www.nettavisen.no/artikkel/alle-overfallsvoldtekter-...