[jessriedel]

Voting is not a good way to pursue your own self interest, which is the typical context of business decisions (bounded of course by morality and the law). From a standpoint of classical rationality, it only makes sense to vote insofar as you are pursuing collective goals, but what is the collective goal with regard to Amazon?

You can certainly object to Amazon business practices and take a principled stand against doing AWS business with them, but that's something you would presumably do whether or not they were competing with you.