This is true. (It's true in every other industry as well.)

But the opposite side of that coin is that if you want people to spend the considerable amounts of time and money required to create new works that are actually any good then you need to have some viable model for compensating them that makes it worthwhile for them to do that. Whatever else you can say for it - copyright has been far more effective than any other model ever tried at the scale of human society in achieving that.

Behind a system of rights there is always a philosophy, which either postulates rights, or certain primary rights, as being somehow inherent or "inalienable", or else somehow justifies the establishment of rights without circular reasoning ("we need these rights so we can have nice things").