Immigration only really causes economic issues with bullshit employee specific visas like H1Bs - those visas trap immigrants in powerless positions where they’re unable to advocate for fair compensation and drive down overall wages.

Everything else is fucking bullshit xenophobia.

Would more supply of workers (even naturalized ones) not drive down wages too?

Eh, it doesn’t really seem like that tends to happen… economies are weird and if you keep adding people you tend to just get more and more service jobs.

Doesn’t sound that weird. More people means more people to serve, so more service jobs are needed.

But where does the extra money and infrastructure come from to provide everything they need?

More people means more mouths to feed, more strain on the limited housing market driving prices and inaccessibility up, more capacity required at hospitals, doctor’s surgeries, schools, all public services (meaning everything from more doctors, nurses, consumables, locations, etc needed), and so on.

Where does the money come from to provide for the net influx of 500,000+~ people a year, a population increase of some 0.75%?

I’m not against immigration, welcoming people from other cultures with fresh ideas and outlooks on life is great and I love it, but the strain it places immediately on our already failing societal systems, such as healthcare, education, housing availability, job availability, etc, is very real, and needs to be addressed.