I think this happens to any city whose existing population and culture gets rapidly overwhelmed in a small amount of time, such that the existing group sees its

I think this happens to any city whose existing population and culture gets rapidly overwhelmed in a small amount of time, such that the existing group sees its way of life being erased. It can happen with situations like sudden mass migration (like in some European cities where they were used as relocation centers for asylum immigrants). But in Seattle’s case, I am betting it’s the tech industry as a whole not just Amazon. The city probably saw a large influx of people from California and also outside the US, replacing the earlier vibes, all within 20 years.