The reason healthcare costs are exorbitant is not (laughably) how many people there are; the reason costs are high is because stupid-ass regulations have turned the market into a shitshow.
The same for housing. It's not like all the houses are filled up with illegal immigrants but poor joe the plumber could afford to buy one if there were just fewer people here. What's happening is cities have regulated the piss out of housing and it's expensive to build in most places in the US. On top of this, the government subsidizes home ownership by pushing mortgages. Of course the price of housing is going to go up when you point a firehouse of money at it.
But beyond this, I don't believe numerical size of the population has much to do with the price of anything. A market works at 10 million people and it works at 100 million people.
given that there is quite a bit of land, if the population naturally moved up to 1 trillion, I don't think housing would be more expensive.
You might argue that "naturally" is doing a lot of work here.
I will concede that if the population changed dramatically in a very short period of time, we would have distortions of price. But immigration has been an ongoing phenomenon over the last several centuries and I don't believe that the market has been unable to adjust to it.
Here's a chart of new housing in 2024 for major cities in Texas and California:
Here for comparison is the median home price in those same cities in 2024:
Now, I live in Texas, so I can attest to it being an ugly wasteland, but at the same time, I suspect the difference in price is not wholly tied up in this aesthetic value: California can't build houses.
In case you believe California has a much higher number of illegal immigrants, the numbers I could find were these:
California has 2.3 million illegal immigrants. Texas has 2.1 million source.
I'm not buying the "too many people" explanation of home prices (nor of any other thing).
According to this site, CA home insurance is cheap compared to the rest of the country. I can tell you this is factually incorrect. Have you heard of wildfires in CA, specifically last January?
naive. For every trade, there is a liability and an asset, a maker and a taker. remove 33 million people at once without proper settlement, and no one can know how much damage that would do, or even if it would benefit the people you think it will.