No, they weren't rude. It was more like they were immovable and didn't care. For heaven's sake, it's not that hard to substitute prosciutto for pepperoni. Again, I wasn't asking for some crazy combination that didn't exist.
I was very surprised at everyone's reluctance to provide that. Very bizarre and un-Disneylike.
I haven't read all the way through, so I am sorry if I am repeating, but yes,it very well could be that difficult to substitute prosciutto for pepperoni.
1st, totally different price points on those items, as one is run of the mill and the other is a specialty.
2nd, did it say No substitutions on the menu?
3rd, maybe they need to get acclimated to the WDW crowd and for someone to come in there and feel they are being unmoving isn't fair.
I owned a restaurant that was very heavy on the fried and southern dishes. EVERY day, and I mean EVERY day, 3 to 5 people would come in and request that we cook items in a specific way, or substitute for things that we could not do so, even with a charge, such as grilled shrimp in a po' boy. Our kitchen being the size it was, and our place being crowded all the time, to take just those few extra minutes to prepare something a certain way means that all other guests are waiting those few extra minutes and it starts to backlog- therefore, it takes longer to be seated and the people dining after you don't know it was your fault for requesting something that wasn't offered. They assume it was the "horrible" kitchen and management.
If you don't like the menu, don't eat there. Not being mean, but maybe that was a little unreasonable to expect them to alter for your benefit.