So at least in Europe, where they can unionize and can and do protest for their rights, I don't see them as any worse than many other multinational chains that do the same.

Do you happen to know whether they actually are unionized in EU countries though, or just could? Genuine question, as I couldn’t tell you (as a German citizen)

Aside from that though, even if warehouse and delivery workers’ conditions were absolutely fine, their monopolistic tendencies are still somewhat of an issue. I’ll try not to turn this into a full essay, because this topic can get real philosophical REAL fast (we’re about 3 winded sentences away, I’d guesstimate).

But: AWS aka Amazon’s cloud business prints SO incredibly much money that they can perhaps unfairly undercut a grocery competitor like Kroger’s, Aldi, and whatnot are their names, that they can start to have a really, really good advantage quite quickly (as hinted to by OP’s order above: not plastics, not electronics, not household goods – food). In case any reader isn’t aware, grocery chains’ margins are absurdly, comically low.

The firm policies/microeconomics philosophy comes in here: how much cross-subsidizing should an undertaking actually be allowed to do? In other words, when is a company expanding too much – even though expansion is something that you could argue to be a core, if not the integral part of what defines a business? Europeans will perhaps see this a bit more strictly, whereas Americans might be inclined to answer close to unlimited here, but keep in mind, this can lead to Mega-everything-corp faster than you realize or like.

I didn’t make all of this up on the spot just now, BTW (some first further “readings”). This has been a somewhat well known issue for some years now, and people knew there could be a day coming where we as a (global) society have to ask ourselves: How many areas can a company dominate in before it becomes too dangerous?