That 200 TW per year is only going to increase. All this power that is wasted - is Bitcoin mining tapping into that? Or tapping into sources where there is a scarcity of power? Also peak demand varies depending on the time of day. A certain segment of the world will need more power during the day when cooling is needed or most people are awake. So Bitcoin mining might use wasted energy in the evening and in the daytime stress the grid.
But what's a better narrative? A Proof of Stake layer 1 that uses a fraction of the energy or a Proof of Work layer 1 like Bitcoin that requires a lot of constant power draw to sustain the network? It remains to be seen how secure POS vs POW is. There are proponents on both sides of the argument.
If you're going to disrupt the legacy system be prepared for them to come after you. Remember email first came out. US government and postmaster general said the most effecient and secure way to send information was via US mail not email. Email needs servers that requires lots of energy and is going to destroy the planet. They actually went to court wanting to stop emails because per email burnt 10pounds of coal! They wanted to implement an email stamp tax!
Same thing with the internet, those who had a monopoly on information used the same excuse, requires servers too much energy every 5 megabytes of information burned a pound of coal. They tried to shut off the internet and email using falsified energy argument.
So you basically have btc running on 200tw hours of energy compared to global energy consumption of 160,000tw hours. BTC uses .00018%. It's a rounding error, see what they're doing? So saying btc uses more energy than a small country is a marketing ploy and outright lie. WEF said in 2017 that by 2020 btc will consume all the world's energy....not a lot, literally said all the world's energy. It's horseshit scaremongering.
Unlike traditional legacy systems which you cant turn off the grid without severe ramifications, they all have fail safes , generators and all sorts of stuff so they don't go off-line. Bitcoin miners don't care if they go off-line, they have what you call a "flexible load" . If there is an emergency you can shut them off first. They can give power back to the grid which means bitcoin miners are the first line of defence. So having a bitcoin mining facility makes your grid stronger than any other because the bitcoin miners will be first to turn off. Then flick a switch and turn right back on within several minutes without a hiccup or damage to equipment.