There was no push back because it benefitted them. By villifying fat, they were able to remove naturally occurring fat from whole foods and turn it into new pr

There was no push back because it benefitted them. By villifying fat, they were able to remove naturally occurring fat from whole foods and turn it into new products to sell consumers. The public didn't stop consuming fat, they continued consuming fat but it was spread across a greater variety of food stuffs. An obvious example is skim milk, it's practically water. They don't throw the fat away, it goes into other products like cheese, which people who drink skim milk also buy and consume. Sugar didn't replace fat in the diet, it displaced fat from some foods, then more foods were added to the diet containing the displaced fat. Sugar just joined the party across the board.