My system is a little more giving than the one invented by the Founders. It is not to give you a right forever. It is to give you a chance to make money off of it, a period that could be considered a good chunk of an adult's productive life. If you don't, then maybe that would be incentive to make something that will sell.
I guess they should be able to use my songs for free so that they can sell time to advertisers?
That's the definition of public domain. Disney made a huge chunk of money off the public domain.
Again, many writers spend a good part of their productive lives building a catalogue before getting that commercially successful song which can often be the thing that gives value to their old catalogue. As far as I’m concerned as a creator, screw the public domain. Disney made the money you referred to. Screw them, too.
Sorry, if I came off angry and aggressive, but it really annoys me for someone to not understand that Disney,to use your example, takes the intellectual property of another person, uses it without compensating that creator and still sells the movie tickets, the DVDs and the CDs for the same price. The point is that it is only a corporate giant like that making even greater profits by not paying for the property of the creator. The creator of the work doesn’t even circulate demos of their work without copyright protection and it can literally takes years before some of it might begin to earn royalties. And those copyrights are sometimes the only thing that writer has to hopefully, eventually, live on and pass on to their children.