The wast majority of piracy are not literal copies. Movies and music get constantly transformed into different sizes and scales, with the majority using lossy transformations that changes the work. A movie taken as raw format and transformed into 144p has far less than 1% of the original work, and is barely recognizable. Copyright law seems to recognize that as infringement.
Most AI seems much better at reproducing a semi-identical copies of an original work than existing video/audio encoders.