Most people wouldn't complain if a new category of copyright were created just for Disney, and anyone else who wants an extra 75 years. Let it be opt in. Most people understand why Disney values its mouse etc., and that it stands to lose income if copyright expires. We get it that they're a special case. We the people can live without that stuff in the public domain. Why doesn't Congress just ask us? (Or would that be unequal protection under the law?)