Generally, any type of GMO pest resistance is done via some change in the plant, and that change can also affect the consumer. It seems naive to believe that no unintended side effects are possible. Take Bt corn as an example. It uses a protein to target caterpillars. The proteins we consume affect us. It’s conceivable that consuming Bt corn, or some other GMO, could have a side effect. How are you so confident to exclude this possibility entirely?
Going back to pesticides for a second, you seem to accept that pesticides affect insects and humans. So why are you so sure Bt corn only affects insects?