This is misleading, why are you using "transactions per block"? that's an incorrect metric, because blocks will get mined regardless of the number of transactions in it (in fact, you can batch WAY more transactions into a block). In the future, when you can account for millions of transactions per block, will you tone down this "bitcoin consumes a lot of energy" rhetoric?
Also, you haven't spoken at all about the other side of the equation. Have you accounted for all the externalities for the other monetary network you are comparing Bitcoin to?