Yep, that covers a lot of it.
Notice that prices basically flat for 5 years from 2015-2020, other than some normal inflation. Then all of a sudden things go apeshit. So...
Did a bunch of people show up? You know I agree completely about inflation, but you are saying demand is the price driver, not inflation. Also, your chart has a deceptive start point. Stretch it back a little further, and you'll see a dip (or artificial bump) leading up to 2010:
View attachment 363004
Things were pretty dang linear until Covid/Lockdowns/Shortages:
View attachment 363005
View attachment 363007
If you look at the population growth line, and that highly technical linear overlay I did on the housing price graph, they aren't too far apart on the slope. In fact, the average housing price was trending fairly close to right at $1 per person, which is an interesting correlation. But then notice the population growth rate has slowed a bit, while housing prices have jumped.
All that to say: I think there is an artificial perception of excessive demand that is driven by low interest rates, massive inflation, FOMO/hysteria, corporatization of residential home ownership, market manipulation (see article about Zillow bowing out because they can't manipulate the market enough to be profitable anymore), and most everyone's natural desire to upgrade, plus general stupidity in a Covid world, which is driving us into 2008 Remix. There are too many people making too much money on it, and it's in their best interest to keep it going, even if it doesn't make sense.