Disney made his money ripping off Lewis Carroll, but taxpayers have to pay to enforce the rights on the works he ripped off 95 years after the fact.
Since Lewis Carroll's original work had gone into the public domain, it is a misnomer to say that Disney "ripped it off". Anyone can take a public domain work and monetise it. That derivative work may be copyrighted, much like the performance of a Beethoven symphony (are the orchestra ripping off Beethoven?) or the performance of a Shakespeare play (again, are the actors, producers and directors ripping off Shakespeare?).
You seem to find the money side distasteful, which is a different argument. The issue here is that the Walt Disney Company, who ultimately own the copyright to the derivative work, maintain their copyright. Yes, copyright laws need re-examining in a world where corporations own copyright, but it's far more nuanced than you are making out.