I challenge anyone to drive through Eastern Washington or Northern Idaho and claim that the people there enjoy any kind of "white privilege."
Their are plenty of poor white people in western Washington, too. The Pacific coast has been pretty devastated economically (minus the really tourist-y parts), and having grown up in rural-ish Snohomish County, I can say there are a lot of poor white places with heavy drug problems there, too (Granite Falls, Arlington, Camano Island, most anywhere in the foothills/mountains of Snoho, Skagit, and Whatcom).
Granted, crossing from Spokane County into Kootenai County is quite the experience. Oh boy.