So, instead of potentially developing immersive, epic-scale, innovative attractions you are rationalizing why Disney should just give us a Toy Story playground instead? Really?
How many (full-size) Statues of Liberty do you figure should be built around the world? How about one in every state so every American will have one - and then there will be nothing special about the original.
Oh, and I know of people who own the original Mona Lisa. Sure, its technically a copy, but because its the original to them and if a copy is just as good as the original...
While there is indeed an epidemic of people being too way too focused on self and their personal viewpoint, that's always been true. Society has struggled with the same issues we face today since biblical times, let alone when Walt Disney was alive; They're nothing new no matter how much people try to claim society is somehow "different" today. Certainly there are changes, but people were clearly "self-involved" both fifty and 2,000 years ago.