In that pointing out that “A can’t be X, unlike B, because A is Y” is a non sequitur if B is also Y does not entail that A and B can’t be different in other respects?

Hypothetical you: “Bread is neither tasty nor disgusting (unlike maple syrup). It’s a bunch of molecules.”

Hypothetical hodgehog: “Maple syrup is also a bunch of molecules [so if you accept that maple syrup can be delicious, being a bunch of molecules can’t be a sufficient reason why bread couldn’t be].”

Hypothetical you: “If you don’t see a difference between bread and maple syrup, I don’t know what to say.”