The whole intellectual property space is pure rent seeking. Everybody wants name recognition and/or money whenever some text, code, image, or video they produced is used or remixed. It is pure rent seeking, from FSF to Sony to Metallica.
If that's true, so is the private property space in general.
But what you say isn't true. The "intellectual property space" is not pure rent seeking. If someone labors to write a novel, they're no less justified to get economic benefit from it than someone who labored to build an apartment building.
Intellectual property critics have a tendency to throw the baby out with the bathwater. There are problems with IP, but those specific should be fixed through reform.
At this point copyright is an obsolete system. It was set up at a time when large-scale copying required an industrial operation, and that is simply not the reality of the world anymore. We do not need to "reform" copyright, we need to build a brand new system that is more reflective of modern technology. Maybe that new system will actually focus on compensating authors as there is no need for a publishing industry, or maybe we will just accept that authors are not guaranteed any payment for their work and will have to make money some other way.