While I agree it's not sustainable and there will be some ramifications, there are a lot of differences between now and 2008.
1) Most importantly, is inventory (as I mentioned earlier). Right before the bubble burst in 2008, there was an inventory of upwards of 19,000 homes available in the area. Now, there aren't 2000. People who invested in real estate and builders took a pounding in 2008 because of all the excess inventory that they couldn't sell. Unless something changes, that won't be the case here.
2) In 2006/7, almost 25% of mortgages were of the subprime variety, so people at very high risk of defaulting. I thought I read that today, it's around half that number (loans that were similar to subprime back then, many now called something different ).
3) During the 08 bubble, the ratio of household debt to GDP in the US was at an all time high between 95-100%. Today it's ticked up but at 78% which is lower than it was even in 2015.
4) In 08, the % of household debt service payments to personal disposable income in the US was 13%. Today it is 9.4% and lower than it was before the pandemic started.
Maybe in a year or two things will get to the point where they were in 2008, but it was the wild, wild west in 2008 in terms of sub prime lending, appraisers falsely inflating appraisals to increase loan amount, banks turning a blind eye, etc.. If any of you have never seen "Too Big to Fail", it's worth a watch, but is a bit frightening how close to the edge the country (and world) was.
Still, where the risk today comes in is the economy. If it falters badly and people lose income via job loss, the housing market should suffer.