Well .... I haven't eaten insects, at least not intentionally... and I wouldn't do it unless I was in the situation you describe, which is a matter of life and death.
When I was a child the situation at home was complicated and there were chickens for example, I remember that one by one they disappeared and my grandmother told me that she had stolen them, today I think that maybe because there was nothing to eat... she made them disappear so that my brother and I could eat something.
I have also eaten pieces that some acquaintances had hunted like vizcacha, deer... but they are not strange things. Well for me they were.
The world is changing... I don't like the subject of insects at all, many of them are toxic for humans... I wonder what's in processed foods, what they put in them?
I hope soon to be able to move to a more distant place and have my own vegetable garden, I don't say to be completely self-sufficient, but I want a change of life. To know what I'm eating.
A curious fact, I met a gardener a long time ago who taught me everything I know about gardens, he was a real master and he told me: did you know that human beings eat soil all the time? I hadn't realised.
I wonder what you might do to survive if your life was threatened, what you would do (do another human) or what you might eat? It's a question most can't answer properly without having been in that situation I guess, but I'm always curious. (Also, what would a human do to save/protect their children.)
In an extreme situation I believe that the human being is capable of anything, because reason has no place anymore. And even more so if he has to protect children. It would be an animal instinct to save life at any cost. Unless the person tends to depression and lets himself die.