Why is GMO bad?

There is nothing inherently bad about GMO but there are many people who have serious questions about them.

The main issue is that they are so new that if there are long-term problems from them we would not know about them yet. Since they are regulated as foods, they typically are not tested like drugs for safety.

An ancillary problem is that nearly all GMO are produced under patent so poor farmers cannot afford to buy them. Also, unlike non-GMO, farmers are not allowed to set aside seed from their harvest to use in future plantings. They are required to buy completely new seed from the patent holder for each planting.