I live in a resort area and have seen food prices go up a lot this year everywhere. I think it is a trend. A sandwich that used to be $13 was "not so bad" is now $17, and ridiculous. that bump is a huge percentage. I'm not sure if there is some greater trend in the country (like with construction materials going up due to tariffs going up) or what but I would not be surprised as a lot of produce and I bet even meat is farmed in central/south america. It seems like american farmers have been very affected by all this stuff going on and now we are having to subsidize them, this is going to trickle down to the cost of food.
A quick google shows that food prices escalating is a thing being talked about in the news, especially the rising price of eggs... which could explain the disproportionate breakfast rise.
As for me, my son is 10. I'm not going to let what is basically $50 on the length of my trip that is costing me a huge fortune to begin with change my plans. It's stupid to spend so much and then compromise on what we want to do, especially as my son is in the sweet spot for this stuff and will never be 10 again. Disney knows it and is counting on it. Anyone who cancels will see their ADRs snapped up. If restaurants have a lot of open ADRs then they will have to offer discounts, generally to AP holders as in the past to fill underperforming restaurants.
Am I disappointed? yes. will it change how I tour? no. My disney trips are too infrequent and too precious to draw a line in the sand and cut off my nose to spite my face. It IS only myself and my son though, if I had a larger family it would be a larger impact (but chances of me having a second adult income to offset it would be higher too).