So is this a good place to be slightly pedantic and point out that "theft" as a concept doesn't apply to non-rivalrous goods?
I suppose plagiarism could be seen as "theft of attention/credit" or such, but copyright infringement is only what it sounds like -- not respecting someone's government-granted monopoly rights.
It is always a good time to point that out. Big content owners try to twist the meanings to their benefit, but while both are illegal, they are not the same thing, and it's not to society's benefit to confuse them.
I suppose plagiarism could be seen as "theft of attention/credit" or such, but copyright infringement is only what it sounds like -- not respecting someone's government-granted monopoly rights.