(see electric cars^h^h^h^hbikes).

There, fixed it for you.

Given how many cars exist globally, I do wonder where 100's of Kgs of batteries per car is going to come from.

A bike requires much less and indeed most people could get by with one so I'd like to see more of this too. But it doesn't cater to the lowest common denominator of population use cases, it doesn't signal wealth, and convenience is king. So I don't think it will come about.

Datacenter energy usage is irrelevant to our global situation. A large cloud datacenter uses a similar amount of power as 1 large aircraft. All U.S. datacenters combined consumed about 1% of U.S. electric power, meaning they constitute much less than 1% of all energy demand. And despite the fact that cloud capacity has exploded in the last 10 years, electric power consumption of datacenters has barely increased, because the cloud is so dramatically more efficient than other datacenters.

source? Bitcoin network allegedly uses as much electricity as Argentina based on headlines (and... those are headlines). Yes that's global, but still.

I'm not sure of the source (as I'm not the parent), but I wouldn't classify crypto farms as "datacenters". They have very low needs in terms of bandwidth and reliability. Many of them are barns on consumer ISP connections filled with bare mobos sitting on pieces of cardboard, or other similar arrangements that are presumably OK given the economics of crypto, but wouldn't be sellable even as cloud compute for most purposes in the current market (it might be OK for batch-type stuff that doesn't involve tons of transfer -- some kinds of scientific workloads like Folding@Home maybe?).

How can all US data centers make up 1% of US electrical power and at the same time only use the same amount of energy as 1 large aircraft?

Each.