If you're arguing that copyright length should be shortened, I strongly agree.

If you're arguing that we should eliminate copyright completely because we should only regulate things you would immediately throw people in jail for, I strongly disagree.

As a society we need to be able to regulate some behavior that is not severe enough for jail time on its own, or for most standard offenses, even if the state ultimately has the power of incarceration to punish non-compliance. Just because moderately speeding shouldn't land you in jail, it doesn't mean that we shouldn't have speed limits.