The impact of immigration on living standards is a complex and contested issue. There is no consensus among economists on the overall impact of immigration, and the specific effects of immigration on different groups and sectors of the economy are likely to vary.
Some experts argue that immigration can lead to lower living standards for native-born workers, as it can increase competition for jobs and drive down wages. Others argue that immigration can boost economic growth, which can benefit all members of society. Still others argue that the impact of immigration on living standards depends on a variety of factors, such as the skills of the immigrants, the size of the economy, and the government’s policies.
https://www.theglobeandmail.com/business/commentary/article-higher-immigration-without-business-investment-lowers-canadian-living/