Nope, I disagree. Your great GGGG grandaddy opens a hamburger stand in east BF, New jersey. It becomes reknown as the best burger joint in all of East BF, many other stands have come and gone but yours is still there 200 years later (just an arbitrary number don't panic), the family still owns the business and you are now running it. Suddenly, by gov decree, your rights to the name of the stand are stripped from you and all over East BF other people are opening stands with the same name but a cheaper product / final price. Next thing you know, you're out of business. How is a copyright or patent any different other than it's not bricks and mortar? You can open a hamburger stand and sell hamburgers, I don't have a patent on hamburgers, you just can't copy mine and put my name on it unless you follow my guidelines and share a small portion of your profits with me. And with copyrights anyways, these are very loose guidelines, you can rearrange, rerecord and release any copyrighted song you like and as long as you don't significantly restructure the lyrics or chord structure there is nothing anyone can do about it. The only say the artist has is approval or dissaproval of any significant changes that ARE proposed. Again I mention Wierd Al as an example. He significantly changes the lyricsso he must submit them and ask permission to use them, which he apparently receives quite often. The only condition for using the work is that you pay the original creator(s) royalties and again, I personally have no problem with that.
I also already know hamburger stands etc are not exactly comparable in some respects but I'm using them hypothetically to say one family put their efforts in the direction of hamburgers 200 years ago and they are still making $ on it. This other family put their efforts into a copyrighted work that still paid for them but suddenly it is taken away from them at some point down the road. Why should they be the ones to lose out after some arbitrarily chosen number of years?