On the contrary, I highly recommend reading JackC's explanation on "theft" vs. "copyright infringement" in terms of "alienable rights": http://news.ycombinator.com/item?id=3696526
I sincerely doubt that nothing would change in a discussion after an explanation like that one. Maybe if the discussion was already restricted to lawyers, nothing would change.
I don't understand your comment. You say 'on the contrary', but then link to a an explanation that I read as completely supporting my argument that this discussion is pointless and unnecessary, because either we agree the act is (il)legal under current law or the discussion is about whether the act is or should be legal. What someone uses as a shorthand to refer to the act doesn't bear upon that discussion.
I sincerely doubt that nothing would change in a discussion after an explanation like that one. Maybe if the discussion was already restricted to lawyers, nothing would change.