Saying the lack of creativity in the industry in because we can't copy things freely is completely moronic.
Copyright can't legally stop you from making a movie about wizards fighting each other with laser swords in space.
There are plenty of examples of copyright hurting people for creating something that wasn't exactly the same as something else which was copyrighted. Copyright is a threat to all creative works. The bigger the investment required for a creative work, the bigger the risk. For this reason, we see it a lot more often in music where the investment needed is lower than films. People have been successfully sued because they wrote a totally new song that was in the same genre as someone else's song https://abovethelaw.com/2018/03/blurred-lines-can-you-copy-a...