I find it interesting how people justify (or not) whether to eat another animal.

you mean you don't think it's right to make a creature take an IQ test before deciding to eat them or not? "Yes, right, well, you seem sufficiently stupid enough to ingest."

First time talking to humans? We distinguish murder from killing because the latter is sometimes justified (e.g., in war or self-defense).

We justify everything we do.

Can you explain?

I like to see where they are farmed before I decide... and having seen much of that in the US I've landed on "maybe some bugs are ok to eat."