This is ridiculous. You're saying people have NO interest in any of the properties? Come on man. That's nuts. You may not, but to say the rest are irrelevant is just being purposefully obtuse.
What? That's your bar to be a draw? Transformers couldn't do that. Still boosted USF's attendance by 10%. Kong couldn't do that. Still boosted IoA's.
I think you're making a problem that really isn't there.
IOA has Harry Potter, Jurassic Park, Marvel. USF has Harry Potter, Simpson’s, and Despicable Me. Beijing (probably) has Jurassic World, Harry Potter, Despicable Me, and an entire Transformers land. FW has (in this example) a cloned Nintendo land already found in two other parks, lesser Harry Potter, and a bunch of DW franchises. And I love DW, but they’re not as big as they used to be. Can you see my point, here?
And, yes, I realize that Beijing mostly has cloned rides. But they’re still unique to the country, and extremely popular franchises, so they should be popular in the park.
The Magic Kingdom does quite well without one main draw...
MK has the advantage of being the first WDW park, and it was built at a time when IP’s weren’t the major draw. If MK were to be built this year, it wouldn’t get nearly the same amount of attendance.