First off, I agree. It was rude and when I wrote it I was in a bad mood in general. I think the ensuing discussion is definitely worth my karma hit; I'm a little bit sorry that you had to receive that aggressiveness, but reading your response I have hope it's ok.
What I felt when I read your post, and wrote my response, was not so much about you as about an attitude that I'm fed up with, which is basically "I can see how this system isn't working out, but I'm participating anyway because it treats me pretty good". And as you say, and others in this thread, there is something - an ideology, a rationalization or a truth - which excuses if not condones this.
I don't buy that coffee, I brew my own, and always buy eco and fairtrade. I know and agree that this isn't really working out either, but it's a start, and a "market signal" or whatever. Thing is, I've been to those coffee and cocoa plantations and guess what - things aren't working out for the people working there, either.
When it comes to the electronics, I'm painfully aware of the fact that the rare minerals are often mined by actual slaves, under gunpoint. What is probably the worst war since WWII is basically about minerals for smartphones, it's in The Congo[1] and has claimed millions of lives. All the while some of the world's wealthiest people are laughing and smiling about their billion dollar profits. So I don't get a new phone all the time. I have a Geeksphone Peak, for the record. Still, it needs cobalt and coltan and tin which might well have been mined by children, literally with their hands.
What javert says about choosing to work there just isn't that simple. What branchless says further down the thread is; it's about access to land. And those people working factories in China were removed from their land in agricultural reforms. It's a political thing and it has happened all over the world; see e.g. The Enclosure[2] in Britain.
This isn't simple at all, but since it's a market economy where all decisions are ultimately made by the "consumer", which is us in the context of this discussion, we have to make the right choices. And if we have the information, we can't just disregard that with "hey, at least it's a job". That's what bothers me the most about this; a lot of people just don't have the information to make the right choices. If the people who have the information, and the wealth, to make better choices don't, then we're doomed.
I realize how this will come through all high and mighty, but I think it's worth it to get a clear message across. The idea behind the market economy is that we organize ourselves according to every individual decision. In that case, it's up to everyone to make the best choice, using all available information. You can't have the cake and eat it.
If you don't agree with how Uber operates as a company, don't do business with them.
[1] http://en.wikipedia.org/wiki/Congolese_Civil_War
[2] http://en.wikipedia.org/wiki/Enclosure
Edit: Spelling.