Australia and especially New Zealand use immigration to help their economies and while that can cause problems, those problems have mostly been addressed over time. We are using immigration as a bandaid to help fix the demographic problem of too many retirees versus not enough workers. Many countries have the same problem, and the problem is getting worse as people choose not to have children. I admit it is an unstable workaround given that those immigrants eventually become retirees. But it is a functional workaround.
Over the last decade, New Zealand’s housing stock has grown by approximately 16% (mostly through densification). I believe Australia is similar. The US administration or culture seems to lack the ability to do the same, but other countries are managing to do it so that's where it look for reasons why.
> That is such a ridiculously foolish mindset
No need to be rude. I have given you examples of how New Zealand and Australia have mostly successfully dealt with a large percentage of immigration. This is fact not fantasy.
The US was built on immigrants with great outcomes, there's no economic reason the US can't pull finger and do it again.