One potential reason to prefer Amazon over Microsoft and Boeing here is that Amazon is majority in Seattle proper, while the vast majority of Microsoft and Boeing are outside of the city (e.g. Redmond, Bellevue).
They "can afford" a lot of things, sure. But at some point it won't be cost-effective for them anymore, and I suspect they will reach that point long before the demagogues of Seattle's extreme left reach the limit of how much they want to extract from Amazon's coffers.
Tell you what: you go and do a better job than Amazon of growing a large scale business year after year by paying executives less and maybe then your opinion will be worth something.
[1] https://www.logicallyfallacious.com/logicalfallacies/Appeal-...