Sorry but that isn´t true since WDW is all Disney World are 4 Parks Disney Springs and 2 Water Parks and all the Resorts from Disney and some Partner Hotels. And I doubt that Magic Kingdom is smaller than the one in Paris, that would be awkward with New Fantasyland and Tron as additions they certainly should be bigger than
Disneyland Paris Park since the Walt Disney Studios are their own Park there just like California Adventure, Epcot, Animal Kingdom Hollywood Studios Disney Tokio Sea.

okay maybe since DLP has bigger Autopia I think and the addition of Fairy Boats and Casey Jr. but still MK has more Rides I think so still doubt that Paris Park is bigger but who knows will see Tuesday since wasn´t there for 3 decades maybe it enlarged it kinda with some Pym´s Particles or what that shrink enlarge thing he they using.