Amazon is anti-labor. Someone posted a leak of their union-suppression policies not long ago[0], and they're quite vocal about their anti-union stance being a part of their "ownership culture."

You're right that they're damned if they do, damned if they don't though, but let's not pretend they haven't earned that mistrust.

[0]https://news.ycombinator.com/item?id=18077434