You just asked me for the answer, so in this case, you! Your second sentence does imply that you are, as the “not even X, let alone Y” implies that to reach Y you must pass X.
Please answer the question: Why is it ethically neutral to intentionally expose a child (he wasn’t passing by, he found out it happened and drove there with his daughter) to such things on a day-to-day basis?
Its not my onus to answer that, that’s akin to trying to prove a negative. As the one making the claim, you are supposed to try to prove it. How is exposure to a whale carcass unethical?
Because exposing children to traumatic things can cause psychological issues and watching someone carve up a whale with a chainsaw is pretty damn traumatic for a normal child.
Let me guess: “Prove that it’s traumatic.”