Insects and grubs, etc, have been a perfectly normal part of the human diet for thousands of years, along with fermented food. Next question.
Go to SE Asia. Eating bugs is perfectly normal. Fried crickets are delicious, by the way. Try them and thank me later.
Crickets have *WAY* more protein than chicken breast (like 60% vs 20%), so if you were a bodybuilder, you should be fighting to get more crickets in your diet. Plus tuna is full of mercury (a known neurotoxin, cos our oceans are all polluted with mercury now, so the bigger the fish, the more mercury you get, as it goes up the food chain, and tuna is a pretty big fish, as big as a human). Why waste your time with that when you can get muscles with crickets? Insects are way more efficient at producing protein and use far less resources?
I could understand if you were some vegan or animal rights advocate and objected to killing thousands of crickets instead of killing a single cow. I actually agree. This is an ethical problem I'm well aware of and I too wrestle with this, by the way. So I would totally agree with you there, actually.
But if you're just opposed to the idea of "eating bugs", then your ancestors might have a few words to say to you. Might be your urban Western sensitivities getting in the way here. Eating insects has been totally normal for most of human history.
Eating bugs is gross, right? I might agree, actually. Who wants to eat creepy-crawlies? But eating processed food at McDonald's made from mechanically separated meat and offal that is only fit for animals is perfectly okay? Try fried crickets and you might change your mind.
There's no conspiracy going on. Humans have eaten "bugs" since forever.