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It's reported VISA's datacenter uses the same amount of energy as around 50,000 US households. Bitcoin energy use is about 2.9m US households.

So say a fiftieth, for around 450x the daily transactions, and it could handle a lot more if demand existed without a commensurate increase in power consumption.

Do you have them? If I had to bet I'd say it is way less. If you don't then your argument is a bit of pointless, no offense.

Is the number of transactions anywhere near comparable?

You could also compare it to how much Google consume.

And you should realize the mining electricity usage is in no way related to scaling Bitcoin.

"Google’s many data centers around the world burn through 260 million watts" way less, besides Google's DC are rather modern and often are rather environmental friendly. Bitcoin on the other hand is mostly mined in China where the energy comes largely from fossil fuels