They would almost certainly escape into the wild and breed with native or natural species, creating problems like how asian beetles are replacing ladybugs, and earwigs spread like an invasive species, not to mention African honeybees displacing other species of bees.
*hat tip Ace of Spades blog
I'm just over here trying to figure out how bugs are more environmentally acceptable than other life forms. Nothing gets around the law of conservation of energy. Trillions of bugs don't just grow spontaneously. They still need to eat a shit ton of feed. Of course we all know this has nothing to do with the environment, and everything to do with control.
It takes way less resources to produce the same amount of cricket protein as beef protein.
Meat production is extremely wasteful.
If you are trying to figure it out I suggest you do some badic research in that.