Let's beat this with actual statistics, I think it's pretty obvious this person doesn't really understand anything about what she is talking about anyway.
Going off a graphic, it seems in 2018 the world used 200,000 (TWH), and following the usually % increase in electricity cost, it's fair to say that ~ 84.23 TWH has been used in 2019. Now, I am using a tool created by students at Cambridge university -
https://www.cbeci.org/.
With the current bitcoin network power (which keep in mind, is even higher then the network power last year), it estimates that 10-11 GW is being used a year for bitcoin network power. 0.042% of electricity... That is not a much, compared to how much % other services take up.
Some quick back of the envelop analysis from your stats.
It takes 4 acre of land to produce 1MW using solar generators.
In order to produce 10GW we need 40000 acre land (just 62.5 square miles). Multiply it by 4 to account for bad weather and night time offline generators.
The is hardly anything considerable, especially in sun rich countries like Australia, India, and several others in Africa where land is cheap and lots of barren properties are available to be scooped up / leased for cheap.
Bitcoin network can entirely be supported with renewables, if need be, for a considerable amount of time in to the future.