No, what happened was the food companies replaced fats with sugars to keep the taste and get people coming back for more but the sugars raised the fat level in people.
It generally is a good idea to be on a low fat diet but you do need good fats and good carbs in your diet every single day. People eat way too much of the bad fats.
What is a “good carb?” All carbs contribute to your diet is energy in the form of glucose. Your body can also get energy from protein which will not trip the insulin switch resulting in fat.