The problem with copyright has nothing to do with terms limits. Those exacerbate the problem, but the fundamental problem with copyright and IP law is that it is a system of artificial scarcity where there is no need for one.
Rather than reward creators when their information is used, we hamfistedly try and prevent others from using that information so that people have to pay them to use it sometimes.
Capitalism is flat out the wrong system for distributing digital information, because as soon as information is digitized it is effectively infinitely abundant which sends its value to $0.