I don't disagree that copyright infringement is bad for those in our business who rely on sales of software or media licenses. And sure there are negative residuals like trickle down economics of the media and software publishers. But it is not cut and dried/black and white. What about fair use? What about abandonware? The law is what it is only now. We (as a society) change the law as we use it. The new round of IP laws, such as the DMCA, are new and the full effects not yet known.
Arguing about this is good because it fosters thinking and may prompt people to actually DO something to improve our current situation.