My issue with GMOs is not whether they're safe - I believe they are though there could be exceptions - but whether you can grow crops from them from seed.
They're considered "intellectual" property and are made with a termination date so that farmers have to keep buying the seed.
Another issue is disclosure. If they were, for example, to use peanut genes in corn and a consumer has a major allergy to peanuts then that could be a problem. The product should come with a notice stating what it contains so that the consumer can make an informed decision.