Starbucks HQ moving to Tennessee is not caused by WA state millionaire tax - Burito Boy was hired on August 2024 well before the millionaire tax was even envisioned. Part of his compensation is predicated on these costs savings - and these were part of Burrito Boy’s negotiations before he even signed up his employment contract. So this move has nothing to do with the millionaire tax.
And just to let you know- Starbucks is not that popular in Seattle. They have been closing stores right and left in Seattle to the point where I only know store that is open. Seattle is not missing them that much.
The average Starbucks corporate worker is squarely middle class. Their job is leaving as a result of this rhetoric.