The thing is copyright no longer makes sense. It used to, but today we have so many movies, tv shows, albums and books that you couldn't possibly read/watch/hear just one tenth of one percent of them in your entire lifetime even if you did nothing else. Copyright was supposed to enable society to be enriched. The constitution doesn't demand that congress make a copyright law, it merely enables it to do so. The moment the public no longer believes that copyright is likely to benefit it, it can simply stop offering it.
So that nobody makes the argument that you take away their property or that the owners somehow has a moral right to it. Nobody is taking their property away from them. What we take away is the (temporary) monopoly they were granted.
And we could properly still put limitations on the commercial use of copyrighted works -- if that had been used as an example, a lot more hands would have gone up among the students.