edited to meet rule #3!
To a certain extent (almost) every large company treats it’s consumers poorly. I would argue it tends to start around the time the company starts thinking of the shareholders above everything else.
Ethical consumption (as I’ve heard it called) is difficult, if not impossible, to completely perform. I think most of the time, you take the company that fits your needs the best and rarely do you inconvenience yourself in order to boycott a company that takes unethical (or similar) actions. Even if you do, usually the replacement company (or going without that product if there is no acceptable replacement) has some sort of new benefit.
Note: I am not super educated on this topic and am mostly talking out of my head.