My issue with GMOs aren't that actual genes of the organism - but that most GMOs on the market now are of the round up ready variety. GMO produce has much higher pesticide residues on them due to the way round up ready plants are produced.

Pesticides kill things. I want as little of that on my food as possible.

Oh and I find the practice of patenting living organisms that will reproduce on their own / the grains and other food stuffs that our species depends on to be immoral. So ya know... voting with dollars.