my experience has been if a chicken is going to start destorying/eating its own eggs it will do it whether or not you feed it eggs raw or not...
generally under normal circumstances chickens will lay, sit and hatch, any that dont hatch are typically cracked and eaten by momma hen if not eaten y something else first...it is VERY VERY natural for hens to eat eggs...
eggs are also good for them, they are high protein and high but balanced in calcium and phosphorus if fed whole.
once cooked however the protein changes and isnt as nutritious to animals that arnt built to digest the "new" form of the protein strand. (pretty much any animal other than humans, even humans cant fully process the change in protein change) raw is MUCH more nutritious!
cooking the eggs doesnt mean there useless, just not quite AS good for them...
our girls get any cracked/dropped eggs raw fresh whoever gets it first, they LOVE it, but have not once broken and eaten any of their eggs on purpose...unless we drop it/crack it, they dont bother with it...
so eating raw egg does NOT automatically mean the chickens will start devouring all their eggs...
some hens are however pre-determined to eat the eggs out of the nest box...
its like saying feeding your dog raw chicken means there going to hunt and kill the chikens...
or feeding the cat fish means your koi pond isnt safe anymore...
all my animals are raw fed and all of them seem to know the difference...
my dogs dont chase the chickens
my cats dont fish in the koi pond (though my kitten is facinated with my betta fish lol)
my chickens dont devour their own nests...