You make one good point, but I think you overall misunderstand my stance. Firstly,
You say you "don't steal (physical things)" as if that makes it ok...
I don't think not stealing makes piracy ok, and I didn't say so. What I mean, and what I tried to say, was that I haven't decided whether I think piracy is ethical or not, and I care little enough that I probably won't decide for the forseeable future.
...but you are stealing. It's a different form of stealing, but you do steal...and you are usually hurting the creators of that material in one way or another. ... You do steal, and you do hurt people.
In my eyes (and maybe this is unreasonable of me, anyone else?), you lose credibility when you state, as fact, your own opinions that you know other people disagree on. The fact that everyone agrees on, is that you believe pirating is stealing, and that it hurts creators. Whether your belief is true or not, is not a fact that the participants of this discussion all agree on or stipulate too.
...you lack empathy for the act...
Minor point, but I don't think this makes sense, as a statement. My understanding of empathy is that it's possible to have empathy and do harm, if you don't realize you're doing harm and hence even though you would empathize, you don't. So I'm not lacking empathy "for the act", whatever you mean by that, but rather I think you mean that I don't realize I'm hurting people, as you say in the next part of your sentence.
Saying "it's wrong" and going no further than that makes you thoughtless, not humble.
I had trouble phrasing this, since I had two things to say about me saying "it's wrong": I wanted to both contrast with saying "clearly unethical", and explain how I would go further. To clarify, I definitely did not mean I would "go no further", in fact I later went further, and said I'd say it's wrong because it's hurtful, and I don't like being hurt.
Now, the one good point you made:
Even today, there are societies where it is "socially acceptable" to beat and murder women, to stone people for being heretics, etc. etc. "Socially acceptable" does not provide justification for unethical acts. [...] You just don't care, because people around you are doing the same.
Well, yes and no. Would I ever beat and murder women if it were "socially acceptable" to? I want to think I wouldn't, but I don't know that, and you don't know that you wouldn't. A couple decades ago, in some of those United States, bus drivers made anyone who was visibly of African-American descent sit in the back. Was that unethical? I think we all agree it was. Was the bus driver an unethical person? Well, we sure don't punish everyone who ever engaged in acts that we now consider unethical but engaged in them simply because it was socially acceptable at the time, like these bus drivers.
I want to believe that everything I do that's socially acceptable is ethical in some absolute sense, and that all those things that are socially acceptable that I don't think we should do (and don't do) are unethical in some absolute sense, but both of those things are almost certainly false. For those things that are unethical but I don't realize and do anyway because they're socially acceptable, how is "socially acceptable" not a justification? Surely it's unreasonable to expect me to know what is absolutely ethical and what isn't.