It’s way different because you can get the same exact product for a lower price elsewhere, sometimes even free. You’re also being charged for programming that in some instances the copyrights are long gone on.
But you are right. It is theft. The consumer is getting stolen from.
I can get the same thing I get at a restaurant for a lot less too if I cook it myself at home, or even for free if I eat at a friend's house. Stealing is stealing... maybe you can justify theft in your mind, I can't. Maybe I'm just from a different time or something.