<< Seattle refuses to add density- a common pattern on the west coast it seems.
This is utterly and preposterously false.
There are huge apartment and condominium complexes going up all over town. Ballard has been strip mined and turned into a virtual Las Vegas strip of luxury apartments. Capitol Hill has been strip mined and turned into block after block of luxury apartments.
I've visited the web sites of nearly all these buildings, and with the exception of projects by Capitol Hill Housing Authority, it's virtually all been built for people with high incomes.
The fact that so much housing has been built for solely for wealthy people is really, really, really central to the argument against gentrification.
Gentrification says "Hey, if your community doesn't have have money, it doesn't exist. If it doesn't exist, we don't even have to erase it. You'll just be gone and no one will care."
This is an incredibly destructive ( often totally racist ) message, and it's really at the heart of the problems that arise with income inequality.