Copyright laws in the United States (and probably elsewhere) are crazy.
Yes, someone should get paid for their intellectual property. Yes, their children should still be able to benefit from their work, at least during part of their life.
However, 75 years is insane, and exists only to benefit publishing companies and media conglomerates (all hail D`zhnii). Same is also true with having to get a difference license for every possible scenario with a work. The creators don't see a bit of this cash, but lawyers and corporations sure do. There have been several papers and articles written over how restricting the flow of ideas between creative people through legal means has also stunted the overall creativity of our culture.
I don't know what the solution to this is, or how to even begin, but the conversation needs to start happening, and UIL and Texas educators should probably be some of the ones leading the charge.