BTC used 123 TWh annually. [0]

Computers, data centers and networks consume about 10% of all the world energy. [1] 4 percent of websites are estimated to be porn [2] a single gaming computer costs about up to 1400 kWh annually. [3]

So the porn websites are about 3X bitcoin and BTC represents around 8.7m gaming computers.

[0]https://www.moneysupermarket.com/gas-and-electricity/feature...

[1]https://en.wikipedia.org/wiki/IT_energy_management#:~:text=S....

[2]https://www.statista.com/chart/16959/share-of-the-internet-t...

[3]https://computerinfobits.com/how-much-energy-do-gaming-compu....

I would like the source too. I would be very surprised if Bitcoin energy consumption passed even half of what is consumed for porn and video games. I expect the amount of energy being used to maintain Bitcoin to be a rounding error in comparison.