How many people have access to a private jet that’s capable of trans-atlantic flight though?
Even those that do will be paying about $1000-2000 an hour in fuel and crew costs, so the 8 hour flight from Orlando to Paris will cost $8-16k, the 10 hours from Paris to Tokyo another $10-20k, etc… probably looking at $50k-100k in expenses once you add in the dozen or so more hours you’ll spend getting to Shanghai, Hong Kong, and Anaheim along the way and the airport costs to store your jet in each city.
Even if you already own a private jet it’s not cheap.
I found a charter flight calculator and those will run $100k and up too. it’s possible to do it private but other than the insanely wealthy my guess is most would probably opt for the $10k lay flat first class option to save $90k.
I know I'd opt for Delta One (or the first class equivalent on other, non-UAL/AA airlines) around the world to visit all the non-US Disney parks if I had the means. Nothing else makes sense.