4) Lots of people buying with all-cash or mostly-cash. You're not at all rate-sensitive if you're a cash buyer.
5) A lot of these cash-heavy buyers are powered by generational wealth.
6) The housing shortage in the US is incredibly acute, so much so that the market will continue chugging along even as borrowing conditions worsen considerably. I bought a couple of years ago when the market was red-hot largely because a family-sized property was unrentable - to get anything big enough for my needs there was no choice but to buy. I imagine others are in the same position now.