That's a humongous assertion about the US economy and not at all in line with the data. Construction is only 4.0% of the GDP, and the lump of finance and real estate (renting, reselling mixed in with the entire stock market) is 20%.

>The economy of N. America depends on building cheap housing, to attract more immigrants, so they can work building housing, to sell to new immigrants.

As described, that would fall into the 4%.

https://www.bea.gov/data/gdp/gdp-industry