> Research in Canada has shown that the overall impact of immigration on housing markets is modest at best in most cases. The effect could be substantial in the case of wealthier immigrants destined to select neighbourhoods. The more important realization is that an absence of immigration would result in a declining population and ageing of the workforce, which could have a much larger negative impact on Canadian housing markets.
I'm not saying that this conclusion is the right one, but I just feel it's actually a much more difficult ECON problem, and cause/effect and figuring out what is best overall is non trivial, and I don't know if wealthy immigrants and high-paid worker immigrants are the simple straightforward explanation we'd all want it to be.
If you're posting "Econ 101" or "supply and demand" in response to a question about people, whether it's labor or immigration, it means you're getting the wrong result. People who do this always forget to consider both supply and demand instead of just the one that makes things look worse.
(Immigrants are a positive demand shock because they increase your customer base.)