
The egg lobby is stubborn and wants things to remain static. As in yes, there's some foods that are breakfast foods and the egg is at the top of that list. Eat eggs every day for breakfast. If you don't, you'll have a shitty day.
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However, the pork lobby seems to be more open to evolving. They benefit from the egg insisting on breakfast being a thing, as it's true eggs are probably the #1 breakfast food by volume, bacon is the real star. It's the tastiest breakfast food and is almost rationed out, as a rare treat.
But the pork lobby has done a good job in the past 10-20 years of getting people to put bacon on everything. Burgers, salads, sandwiches, etc. Bacon realizes that while "breakfast foods" are traditional, our society gradually evolves over time. One day, "breakfast food" will no longer exist. People will eat whatever they want, whenever they want. Spaghetti at 8am, an omelet at midnight, etc.
The egg lobby needs to get it's yolk out of the grits and diversify.