The US consumes about 4 PWh/year, so bitcoin isn't comparable with the nation as a whole. However, that is more power consumption than many individual states, so your overall point remains completely valid.
There’s no need to introduce hrs and years to the mix. Watts describe precisely what you’re attempting to quantify.
https://www.google.com/search?hl=en&q=4+PW+hr%2Fyear+in+GW&o...
If we assume banks are 10% of that, then it’s 200 twh. 3x bitcoin. But also, handling literally all finance and banking in the US. Vs essentially nothing for bitcoin, compared to the scale of the us economy.