There's a lot of cultural inertia behind meat and it's incredibly difficult to get people to change their diet that drastically (they can't eat their favorite foods, they need to learn entirely new recipes) it's much much easier to just work with them and make good substitutes.

I just went vegan and without it being a strong personal conviction I wouldn't have been able to do it.

No, but you can either spend a ton of effort trying to convince meat eaters that "this other thing is also delicious", but they'll just ignore it. Instead, just replace their burgers/nuggets with something else that also looks like burgers/nuggets yet pretty much tastes the same, and you don't need to convince them.

It has been done before, only with true garbage instead of bugs. https://www.youtube.com/watch?v=ObcsswhO83I