What's so bad about corn?

I keep hearing theres too much corn in american food and corn is in everything. Its a vegetable right? Why is this so bad?
Corn holds a great deal of nutritional value due to its high fiber, vitamin, and mineral content [1]. However, corn can also cause a spike in blood sugar and weight gain [1]. The idea that corn is unhealthy likely arose because corn is also high in starch, a carbohydrate, which can cause weight gain when consumed in excess [2].
Due to the high carbohydrate content of corn, it can lead to an increase in blood sugar levels which can be detrimental to those suffering from diabetes [2]. Additionally, corn contains a high percentage of prolamins, which are proteins the body can't properly break down, and can lead to or exacerbate leaky gut and the growth of bad bacteria in your gut [1]. Due to the high fiber content in corn, it can also cause indigestion and stomach upset, as well as intestinal irritation and diarrhea [2]. 