The key to successfully introducing insects into the western diet is processing. Processing to remove the chitin exoskeleton (which can be saved and used for making non-edible objects), and processing to remove the product from the direct image of an insect. If you scatter some fried cockroaches over a salad you'll get a some brave souls who will say "eh, crunchy, but not bad"; if you process cockroaches to a 'meat patty' or sausage or 'protein bar' then the large majority would give it an honest try enough to become regular customers.