I'm not Caucasian but to distill a growing population of people's irritation with film studios wanting to rewrite all major iconic characters of their childhood as minorities of LGBT as simply them being "irrational" is a very shallow way of looking at it.
Disney has access to more data on sentiment and consumer choice than we do and they would know just as we do there is growing push-back against this sort of thing.
From what I've seen, people would have no issues with a bunch of new characters being introduced that are minority, LGBT or whatever social issue we're servicing this quarter. They might express surprise that big companies are willing to spend so much time and effort on characters that don't represent the majority of the population and they'll probably vote with their wallets by not seeing films that don't represent them or pander to social issues instead of focusing on entertaining. But you wouldn't have this growing vocal annoyance.
You'll need to explain why having access to customer sentiment and demographics... and seeing the reaction to multiple big releases that have been panned / been commercial failures, they want to continue making such choices. At the very least they could vary it up right?
Unless their ESG overlords don't allow them