I can't tell if you're joking, but "infringe" means "to violate" which implies that there is a law or agreement that's being broken. That makes it sound like you agree with the idea that this is stealing.
Different circumstances, different terminology. The correct terminology (see US Title 17 or CDPA 1988) is "infringing". Anyone who insists on using the word "stolen" is signalling their ignorance of the first, most basic fact of copyright law.
1.) If the item is being given away for free, there can still be infringement.
2.) If a person would never purchase an item at the available price (due to the law of supply and demand for example), that person might still infringe. No revenue was lost or gained since the transaction would never have completed at the existing price.
In either of those cases, no revenue was "stolen", but infringement still occurred. These are some of the many reasons that stealing isn't a good way to describe copyright infringement.
If I point a gun to your face and take your money, that's a law being broken, but taking that money is not stealing, it's robbery.
If I threaten to expose some dirty secrets and demand money or things from you, that's blackmail but not stealing.
If I take your textual content and re-publish it under my own name, then that's an infringing use but again, not stealing.