[esalman]

Not the same kind of housing.

People who are crossing the border illegally are never going to come close to qualifying for a mortgage, at least in next 5-10 years.

But a different kind of immigration does affect the crisis, and it is on the other end. You can fast track permanent residency by investing money, around $1m, into a US business. So every corrupt technocrats, police and army higher ups, politicians, gang leaders, unscrupulous business people I know of from my native developing country own multiple houses for themselves, their spouses and kids in US and Canada. This is what is making homeownership more and more unaffordable for average Americans.