Again not that simple, its a healthy business that uses profits from all business units to fund the rest of the business units. Again this is normal, so not sure why this is even such a heartache to understand. And again its something Disney has been doing since the beginning days of the company when Studios literally built the Parks.
I think what some have issues with is trying to reconcile how no new investments or cuts can happen in Parks when Studios can have Millions spent on them. And again I say to that, its not that simple. Funding for large capital investments like new attractions and such for the Parks doesn't just come out of nowhere. It takes funding from the entire company to do that including from Studios. Targets are set on each business unit and those targets must be hit, if not that is when cuts happens. Most don't pay attention to the cuts that happen in Studios for example, but they do happen, like cancelling shows and movies. Its only the cuts and price increases to Parks that people around here pay attention to, which is why I keep saying "its not that simple". You cannot directly attribute xyz movie or xyz bad box office year losses to zyx cuts and price increases in the Parks. Yes the Parks are asked to tighten their belt when the rest of the company isn't performing, but so is every other business unit inside TWDC, they just are as publicized as Parks.
This is why this simplistic view that "Parks funds everything" is a misconception of how corporate economics works, especially inside TWDC.